you can use s13 or s14 coilovers. z32 will not work. they have a different lower mount.
you cant use 300zx ecu either. car will not act right and after hitting 40 or so it freaks out and dies. j30 ecu works good. im working on getting custom tuned chips set up for under $200 with a guy that does tuning for 300zx. he sockets the ECU with his daughterboard and then installs the chip with custom tuned map. now that my car is up and running again i can do dyno pulls and get air fuel ratios with power readings and he can try to tune it that way. may see if i can just take a road trip to him and get him to tune it personally at his shop in FL. im at 201rwhp and 177ft/lbs torque.
driveshaft just needs the manual slip yoke welded on and as far as mount you can use the stock J30 mount. just bolt it to the trans.
just got done a few weeks ago doing my second manual swap and it went a lot quicker this time around.