And didnt you do it all yourself? This guy wants a garage to do all the work so probably looking at another £3k labour?
Nah didnt fit any of the engine or tt kit's to the car, did most of the supporting mods though. It's doable I'd say just need to find a decent garage to do the work for you, be carefull with a 'to cheap' place though (can take a while to get stuff done and end up a bit more costly in the end...)
If your aimining for 400whp with standard internals possilbly a vortech etc kit is the way to go. I'd still aim for something else like the bb kit from Canada, currently excange rates are horrible though. Not sure if they're any companies doing a custom single t kit for the Z within europe.