Here is the dump of the header follows. There were no manual manipulations to the file itself, it's exactly in the form it was restored. I'm too reluctant to any modification because 200Gb isn't the most lightweight size to be quickly restored or transferred.
What is confusing me in the descriptor part of the header is that it is using 0x00 as separator. Whatever I saw online says that the descriptor is embedded as-is, as a plain text.
00000000 12 20 12 12 01 00 00 00 00 00 00 00 32 00 00 00 |. ..........2...|
00000010 00 00 00 00 00 00 00 00 fc 65 00 00 ff 00 00 00 |.........e......|
00000020 3f 00 00 00 fc 65 00 00 ff 00 00 00 3f 00 00 00 |?....e......?...|
00000030 00 00 00 19 00 00 00 00 03 00 00 00 00 00 00 00 |................|
00000040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000070 00 00 00 00 00 00 00 00 00 00 00 00 12 20 12 12 |............. ..|
00000080 12 20 12 12 0a 00 00 00 06 00 00 00 12 20 12 12 |. ........... ..|
00000090 64 65 6c 65 74 61 62 6c 65 00 74 72 75 65 00 00 |deletable.true..|
000000a0 12 20 12 12 0e 00 00 00 22 00 00 00 12 20 12 12 |. ......".... ..|
000000b0 6c 6f 6e 67 43 6f 6e 74 65 6e 74 49 44 00 30 38 |longContentID.08|
000000c0 32 38 62 63 38 64 34 66 64 39 30 39 30 61 31 61 |28bc8d4fd9090a1a|
000000d0 33 61 31 34 34 38 36 63 61 33 39 36 33 63 00 00 |3a14486ca3963c..|
000000e0 12 20 12 12 0d 00 00 00 0c 00 00 00 12 20 12 12 |. ........... ..|
000000f0 74 6f 6f 6c 73 56 65 72 73 69 6f 6e 00 32 31 34 |toolsVersion.214|
00000100 37 34 38 33 36 34 37 00 6e 12 20 12 12 0a 00 00 |7483647.n. .....|
00000110 00 06 00 00 00 12 20 12 12 64 65 6c 65 74 61 62 |...... ..deletab|
00000120 6c 65 00 74 72 75 65 00 00 12 20 12 12 0e 00 00 |le.true... .....|
00000130 00 22 00 00 00 12 20 12 12 6c 6f 6e 67 43 6f 6e |.".... ..longCon|
00000140 74 65 6e 74 49 44 00 30 38 32 38 62 63 38 64 34 |tentID.0828bc8d4|
00000150 66 64 39 30 39 30 61 31 61 33 61 31 34 34 38 36 |fd9090a1a3a14486|
00000160 63 61 33 39 36 33 63 00 00 12 20 12 12 0d 00 00 |ca3963c... .....|
00000170 00 0c 00 00 00 12 20 12 12 74 6f 6f 6c 73 56 65 |...... ..toolsVe|
00000180 72 73 69 6f 6e 00 32 31 34 37 34 38 33 36 34 37 |rsion.2147483647|
00000190 00 6e 12 20 12 12 0c 00 00 00 0a 00 00 00 12 20 |.n. ........... |
000001a0 12 12 61 64 61 70 74 65 72 54 79 70 65 00 6c 73 |..adapterType.ls|
000001b0 69 6c 6f 67 69 63 00 70 12 20 12 12 0a 00 00 00 |ilogic.p. ......|
000001c0 06 00 00 00 12 20 12 12 64 65 6c 65 74 61 62 6c |..... ..deletabl|
000001d0 65 00 74 72 75 65 00 00 12 20 12 12 13 00 00 00 |e.true... ......|
000001e0 07 00 00 00 12 20 12 12 67 65 6f 6d 65 74 72 79 |..... ..geometry|
000001f0 2e 63 79 6c 69 6e 64 65 72 73 00 32 36 31 30 38 |.cylinders.26108|
00000200 00 00 12 20 12 12 0f 00 00 00 05 00 00 00 12 20 |... ........... |
00000210 12 12 67 65 6f 6d 65 74 72 79 2e 68 65 61 64 73 |..geometry.heads|
00000220 00 32 35 35 00 00 12 20 12 12 11 00 00 00 04 00 |.255... ........|
00000230 00 00 12 20 12 12 67 65 6f 6d 65 74 72 79 2e 73 |... ..geometry.s|
00000240 65 63 74 6f 72 73 00 36 33 00 01 12 20 12 12 0e |ectors.63... ...|
00000250 00 00 00 22 00 00 00 12 20 12 12 6c 6f 6e 67 43 |...".... ..longC|
00000260 6f 6e 74 65 6e 74 49 44 00 30 38 32 38 62 63 38 |ontentID.0828bc8|
00000270 64 34 66 64 39 30 39 30 61 31 61 33 61 31 34 34 |d4fd9090a1a3a144|
00000280 38 36 63 61 33 39 36 33 63 00 00 12 20 12 12 10 |86ca3963c... ...|
00000290 00 00 00 03 00 00 00 12 20 12 12 74 68 69 6e 50 |........ ..thinP|
000002a0 72 6f 76 69 73 69 6f 6e 65 64 00 31 00 40 12 20 |rovisioned.1.@. |
000002b0 12 12 11 00 00 00 03 00 00 00 12 20 12 12 74 6f |........... ..to|
000002c0 6f 6c 73 49 6e 73 74 61 6c 6c 54 79 70 65 00 30 |olsInstallType.0|
000002d0 00 40 12 20 12 12 0d 00 00 00 0c 00 00 00 12 20 |.@. ........... |
000002e0 12 12 74 6f 6f 6c 73 56 65 72 73 69 6f 6e 00 32 |..toolsVersion.2|
000002f0 31 34 37 34 38 33 36 34 37 00 6e 12 20 12 12 05 |147483647.n. ...|
00000300 00 00 00 31 00 00 00 12 20 12 12 75 75 69 64 00 |...1.... ..uuid.|
00000310 36 30 20 30 30 20 43 32 20 39 32 20 35 37 20 34 |60 00 C2 92 57 4|
00000320 65 20 63 39 20 66 30 2d 39 33 20 37 35 20 34 39 |e c9 f0-93 75 49|
00000330 20 38 36 20 63 30 20 38 64 20 31 34 20 31 61 00 | 86 c0 8d 14 1a.|
00000340 6f 12 20 12 12 11 00 00 00 04 00 00 00 12 20 12 |o. ........... .|
00000350 12 76 69 72 74 75 61 6c 48 57 56 65 72 73 69 6f |.virtualHWVersio|
00000360 6e 00 31 31 00 01 12 20 12 12 00 00 00 00 00 00 |n.11... ........|
00000370 00 00 12 20 12 12 12 20 12 12 00 00 00 00 00 00 |... ... ........|
00000380 00 00 00 00 00 00 00 00 20 00 03 00 00 00 12 20 |........ ...... |
00000390 12 12 00 00 00 00 fc 31 c0 8e c0 8e d8 8e d0 bc |.......1........|
000003a0 00 0e be 1a 7c bf 1a 06 b9 e6 01 f3 a4 e9 00 8a |....|...........|
000003b0 80 fa 80 72 0b 8a 36 75 04 80 c6 80 38 f2 72 02 |...r..6u....8.r.|
000003c0 b2 80 e8 c8 00 b6 01 bb 00 0e be 88 07 e8 a3 00 |................|
000003d0 66 81 3e 00 0e 45 46 49 20 75 0d 66 81 3e 04 0e |f.>..EFI u.f.>..|
000003e0 50 41 52 54 75 02 eb 19 80 fe 01 0f 85 b2 00 b6 |PARTu...........|