Hey mate, why don't you just buy mine. Its an R32 with an RB25DET conversion! Anyway, the engine itself in good nick should only be around $2500-3000 with the loom n ecu. You will save yourself heaps if you do the installation urself with some mechanic mates as the labour is the real killer when it comes to overall cost. The previous owner of my car did this (He was 1st aussie owner of the car) which I had professionally inspected and everything was mechanically sound. Once all in, you will need an engineer's certificate to approve the mods cause you've increased the capacity of the engine, & any other mods, etc. Good luck - Hope this helps.