I'm sure someone will come along to help you Paddy, although it may be a false economy considering how important it is that the maf is working properly.
From memory (I bought one a few years ago from Subaru) they are only about 150-200e.
[quote author=Paddy GT link=topic=3911.msg40318#msg40318 date=1191837468]
I was told they were 500 and I'm just a bit strapped for cash at the moment
[/quote]
As I said it was a few years ago I bought one so not exact on the price, but I'm sure 500e is overstating it.
Give Carroll & Roche a call, have a look in the traders section at their advertisement & discount details.