Hey now. z31s are not pieces of shit. My 88 will soon put a hurtin on most z32s around. Anywho… I have a nice 86 turbo that will be in your budget. They are a lot easier to work on and you can get engines for cheap. Mine is right around 300 whp right now and is loads of fun. For a little extra I can put the injectors and T3/T4 turbo in and the car will be at 450 whp. I kind of want a gt35r for the 88 anyways. Let me know if you are interested. Here is a pic.