Thanks for the replies everyone!
Red sprinter - Cheers for clearing that up

I am planning on re building it before the engine goes in the car, i'll have about $3500 for the conversion, with aftermarket ECU just so i can do more myself and do away with a lot of the spaghetti wiring.
My friend has a whole workshop (his dads haha) which i think ill be able to use, but only when i really want to, ill do most of the re building at home.

I do intend to drift the car, but not on a proffesional level, just to take the thing to practice days etc at lala and pt G.

And i wanted the 7 rib bottom end because down the track i may decide to turbo it, im not 100% sure yet, but i'd like to have the option there.

Also im not too sure on the 20V option, from what ive seen there isnt as much aftermarket support for them as there is for the 16V engines, and i'd like to keep the costs down in some places. Also im probably going coil packs so the dizzy will be goin anyway.

Thanks a lot for the comments.