Awesome build mate, and know what you mean about a lack of zeds in the drift and race scene. I'm just breaking my zed track/race car now for various reasons :sad: - in fact i think you mailed me on ebay about the BOVS - but it was an awesome bit of kit, good luck with the project.
May have missed it in all the detail in your thread but if you need a rad I have a big, hardly used KOYO rad which kept my 580bhp race car cool enough. Will be positng loads of bits up on here for sale as soon as I get myself sorted anyway.