Righty! Picked the car back up without the work doing and thankfully I didn't have to argue the toss over price as he hasn't charged me a penny. I've gotta give it to the bloke really, he was so helpfull when I turned up and showed/explained exactly what the problem was.
Basically the cambelt can have two types of cover. The oldest and stupidest one like I have is only fitted to some or all of the 2005 models and it consists of one piece covering the belt in its entirety. With this you really do have to remove the drive shafts, air con pipes etc and hoist the engine about a foot according to VW. It seems they realised how stupid they had been though and all the 2006 models onward use a two piece cam belt cover which splits in the middle meaning the cover can be removed without all the work involved with the single piece one.
So the chap at the specialists says even the older mk5 Gti's he's done have had the two piece unit hense why he has never seen one before. What he's suggesting is ordering a new single and twin piece cover to see if they have exactly the same fittings etc. If it does he wants to remove the old one by cutting it across the middle (where the join is on the two piece), replacing the belt/pump etc and then putting the two piece on.
What does everyone reckon? Its nearly £200 pound more to go to the stealers but then there's that EXTRA peace of mind? Has anyone ever encountered the same issue?
Advice welcome.