T25 is junk in the 88 what to replace with? and new to 300zx need motor advice

Bought a 88 300zx turbo 5 speed car this summer found out the turbo is locked up. Currently pulling the motor out to replace. What should I put back in? Should I just rebuild it or look for a t3 or is there a aftermarket turbo to go with? Looking for a fun street car mild build was planning on a intercooler and 3in no cat exhaust manual boost controller and boost gauge. What should and can I do or get rid of on the motor while its out egr emission stuff etc. ? Also planning on doing timing belt while out. And kicking the idea of a pathfinder intake. New to theses cars need help and advise thanks.