Iam sure there was a bloke from the midlands who purchased all the spares from m sport as I spoke to him about exhaust manifold years ago , can't remember if ian gave me his number or if it was someone else but he had lots of stuff and he was asking a lot of money for the parts. There's some bits come up on ebay in the last few weeks could be him so worth contacting.
All I know it had
CGI block with liners and all bits machined away to make it as light as possible
Uprated head
Custom dry sump system mounted to the rear as the engine was titled back
Custom inlet manifold
Revised water pump with larger outlet
Custom exhaust manifold with custom exhaust flange adaptor spacer to run egr
Custom turbo and titanium wastegate which I believe are around £2500 alone just for wastegate.
All the radiators etc should be the least of your worries as you can have very good copies made and it would not matter as long as you get the look .
I know they were titled forwards so they caught a lot more air instead of being mounted straight

Hope this helps

Cheers paul