No A/C, $1500 if you want it back in
It has no engine mods other than a cold air intake and headers
It was more than likely a track car since it has no a/c and a built rear and welds
Search craigslist and get a better car you can find NICE Fox bodys for $4000 with A/C and mods.
I picked up a 1989 GT, All stock with A/C that works from Original Owner for $3800, 150000 miles. If the aftermarket parts are worth it to you than I think it is ok.