Re: turbo coupe
most foxbody mustang parts bolt up. I have heard mixed reviews as to if it's only some or all. The car is on a fox chassis. Should be able to buy 5 lug rotors and 5 lug axle shafts and go.
If it were me find a 8.8 rear that probably has the swap done and bolt her up. You'd need it for the amount of power that you're dreaming of. (read your other post) as our era of birds came with 7.5 rears.
84 four eyed beauty!!! 302, AOD, 7.5 rear. 0-60 in ten minutes LOL (the engine is awaiting a rebuild....someday