sounds good, and do you think i could do that on my budget?
On your budget, doing quite a lot yourself you should be able to buy the G3 16V donor, strip and sell the surplus rubbish, get the head ported and flowed at JNL Racing in Markyate, buy a set of throttlebodies, get a stub manifold made up and get it running on proper EFI with none of this 'carbs' bollox - that's a fool's errand.
You may also be able to stretch to an LSD in an 02A box.
JNL can advise on management, or you can go MS, or Emerald and get Dave Walker to map it.
If you are still insisting on boat-anchoring your Golf then for information on VR6 conversions, look out GVK Motorsport - runs probably one of the most well-developed VR6 G2s in the UK.