The big thing that makes me think the Jeep can be rebuilt is what I don't see......I don't see the typical fire results of flat melted tires, warped sheet metal, buckled fenders, headlights popped out. It doesn't make sense as the adjusting screws go into a plastic tab that should have melted. The WS glass is gone and the interior is toast, but there is rubber lines here and there, etc. Kinda weird. I got a Scrambler that had an engine fire that warped the front of the tub so bad that I just threw away all the sheet metal from under the doors forward. It was just too wavy to fix....or try to. My engine was way more melted than yours and I was able to save it with a basic clean and rebuild. I replaced all the outer components and it ran great. I see your frame down as very salvageable and even the sheet metal has promise. Every part will have to be removed, condition evaluated, cleaned, etc. With the support here and the determination on your end, you and Jack will be Jeepn again better than ever.
1975 CJ-6 1983 CJ-8
1986 CJ-7 Laredo 1986 TJ-7 Trail Jeep
2003 Inca Gold TJ Rubicon