I just saw your thread.....love love love the e30's. I was very close to pulling the trigger on an e30 m3 w a s50b32 swap and 6speed....such a sick car.
oh, and get the RS's no questions asked, one of my favorite wheels ever.
funny, we both had/have heavily modded e92's and now we're both stepping back to old school BMW's on different coasts. Only thing is....you got to keep your e92.
anyway, best of luck and enjoy the process. I cant stop going to my garage and tinkering with this car. I can tear it apart and not worry about pissing off sensors everywhere. Just yanked the dash apart and redid the stereo and added usb connections, bluetooth, sirius and a sub. So much better on the sound department now.
best of luck!