Thank you guys, I'm sorry for the slow response, I've had to wait a month or so for Admin to unlock my account as I only had 2 posts before. It is appreciated.
I've obviously got the car now and have sorted a few things namely:
Installed an android head unit for bluetooth and sat nav, actually really happy with this, the sound is way better than the factory radio and it make the car feel a lot newer!
Installed the steering wheel buttons (I did have the correct loom, mine being a 56 plate DSG)
Replaced the cam follower (mine wasn't too bad but the black had worn off, so worth doing but cam and pump end fine)
Replaced the PCV, I had a bit of a lumpy idle which got worse and eventually threw an engine light for lean running, replacing this has solved the issue.
Went to the dealer in the end for the bits, didn't work out much different pricewise to awesome GTI.
Still want to replace the exhaust at some point although its not falling apart at the moment so I'll probably wait till a decent second hand one crops up. Decided on a Miltek non-res and I would like to replace the 18" Monzas on it with some BBS CH's.
There are a few other niggles that I'll sort over time - bits of scuffed trim etc, saggy headlining but I'm just going to be using it and doing these bits as / when I get time!
It needs some general love too - good polish and a service but I'm in the middle of building a garage at home so once that's done hopefully it will get what it needs.