^^ Unless hes going to put a mk4 engine in it, the cost of getting an interior, wheels and rebuilding/replacing the messed up engine would cost the same if not more than just laying a grand or so for an already running supra and doesn't have to deal with the stress and tune time. Especially if hes not a mechanic.
For asking for a "free' supra shows he cant afford any for sale. If he cant afford a running supra I don't think he can afford bringing a shell to life.
But outside of the T/C if you're a grease monkey and want to build a great mk3 with custom interior, stagger rims and stronger engine, MDC shell is a solid deal since you don't have the hassle to remove most of the stuff and the body is good to go.
Also T/C check on eBay, theres usually mk3s for sale on the cheap there and if your lucky its locally. It wont be "perfect" but most of them run. Heck you can find a BHG supra for around 500 usually and its less funds to make it run than an empty shell. Just trying to help out. Good luck with your search!