decent R32 GTR's start at $18,000. for that price many have reconditioned engines, and i wouldnt import one if it didnt coz you need to remember they are 15 year old engines and that can be a problem, especially if its done over 200,000 km.
I think Jspec and prestiege motorsport and the best import companies around...
www.jspec.com.au
www.prestigemotorsport.com.au