Mines got a 33 25det head on it, has the vct port, but is not running it. But I also appear to have tomei cams in my car. You'd have to ask nick if you could run vct on the 32 ecu. check this thread as well
http://www.skylinesaustralia.com/forums/Rb...25-t155917.html
Don't see why the ecu wouldn't handle a different turbo, I initially had a normal rb25 neo turbo on mine, now have a slide rb25 hi flowed turbo, ran fine on both, just had to have a remap to run better on the current turbo (getting another remap done, due to some small issues). Your going to need another remap to run the rb25 anyway if you decide to take that route.
Like I said before happy to let you have a look at my engine bay.