I leaning toward the mini-tub. I'm a long way from that at this point. Mine, like yours, is a real GTS but not a #'s matching 340 albeit a correct 1969 block. I'd like to run in the twelves. I've thrown around the idea of a stock restoration as well but a none #'s car, I may as well have fun with it. I'm still looking for a 391:1 posi and am pulling the motor to strip and paint the engine bay soon. Who ever painted it did a brutal job.