1. na's came with 5sfe.....
2. very common swap....motor drops in...have to re-wire ecu..
3. ttops are known to leak....91 turbos are notorious for exhaust manifold leaks...91 susension prone to understeer (which i dont believe....don't blame the car..blame the driver)
4. tail lite swap is easy if u have some sort of mechanical knowledge...no rewiring needed if u use current wiring harness and not the 94 harness...only need to extend reverse lites wires on 91 harness....
and u also love to post in MMM.....