You've got a '93, so the hypereutectic pistons will probably let go first. Do a turbo build, and in your spare time find a cheap but good shape 87-92 short block (they came with FORGED pistons) and get all the rebuild parts. Do a nice simple rebuild, get some arp rod bolts, hone the block, clean it up nice, get the short block ready because you'll need it sooner than later. Dont powershift, and your t5 will last longer than your axles and block. I beat on my WC t5 all the time with my single turbo and its still alive, sitting at the shop. Subframe connectors, 255lph high flow intank pump, adjustable regulator, Turbo setup, new bottom end, aftermarket heads/intake if you can afford em, clutch + steel input shaft bearing retainer for T5, 31 spline carrier and axles.
'86 GT T-Top - 5.0/T5 - in pieces.
'90 LX Vert - stock
'83 Cutlass Cruiser LS/LR4 swapped, TH350, 8.8 rear swap