T4 Headstuds & copper gaskets

[MdR]

I'm (eventually) gonna be running 8.0:1CR & Turbo on 1971cc T4

Anyone got any suggestions regarding uprated headstuds/Std new studs/reuse old studs?
Also where to buy them from? VAG (UK) list std new studs @ just over £150GBP for all 16. (but they've only got 4 of one length in stock)

Do I really need copper headgaskets. Aluminium isn't a great deal harder than copper & cylinder heads are already made of it (!)

Thanks
Martin