Original always pulls more from purists. If you are wheeling it hard and turning it into something you wheel with a v8 abd other non toyota partrs, you won't get interest from purist if you sell. It just depends what market you target. If you like it , buy it. That's my motto. You are driving...
I'd be more worried about the rocker condition. But the quarters can be replaced . You can source the tailgates used. Rockers can be replaced too. I would probably give 6k max for it but that is because I would replace all of that and swap the engine back to a f or a 2f. If you want a fun truck...