This is the thought I had years ago, only problem was I had just finished the 26 conversion. AWD is a big job not impossible but not easy either, I was looking for quite a while for an awd front cut but no luck. I would do a rwd vh45 conversion and even keep it auto, I have driven a few vh45 powered cars and I love them, by far the best nissan motor I have driven for street duties. There are a few cheap complete cars for sale at the moment (Q45) if I had room I would by 1 and keep it till I found a good car to convert. Oh and they were made up till 2002 so in Qld you can convert upto 2002 cars without drama, friend has 1 in a vx monaro lol