First of all, your location would probably help.
1974 Toyota Landcruiser FJ40 - $3000 (Honolulu)
Like this one, IMHO there are a few parts worth saving. The body, fenders, hood, front valance/grille and top are goners. Pacol and Aqualu make/sell replacements, including frames. Your best bet is sell it low, lower than this guy as he's come down from $7K, and hopefully someone is looking for TITLE and a VIN plate and a few parts to salvage. That's how ICON starts their builds.
I found similar, but in running condition, no top or doors and he wanted $1900 and no one, myself included, touched it for months. He recently dropped it to $1700. He laughed at $900.00 and it was not up to date on reg and safety inspection, no turn signals or wipers.
I think Doc @ M-PAC will agree with me when I say, most owners think that there FJ's are lined w/ platinum.
Body and paint
The other day I looked at a "running" '78 w/ top and doors, that needed a tune up and had a few spots of rust. Well, it needs a carb and probably a re-build and the "spots" are as big as my fist. And he dropped his price to $7K. Even though it was mustard colored, it was not gold.
Overlanding is about exploration, rather than conquering obstacles. While the roads and trails we travel might be rough or technically challenging, they are the means to an end, not the goal itself.
The goal is to see and learn about our world. The vehicle and equipment can be simple or extravagant, they too, are simply a means to an end. History, wildlife, culture, scenery, self-sufficiency - these are the rewards of Overlanding.