Golf Mk3 Throttle body

Hi all,
I have a '94 Golf Driver 1.8 for which I need a replacement throttle body. In an attempt to avoid buying a brand new one (upwards of £170) I'm trying to find a second hand one. Unfortunately I've been informed that for this model one of these may be hard to come by; apparently this was the first golf with fuel injection and vw upgraded from a single point to a four point soon after. If anybody can point me in the right direction for one of these I shall greatly appreciate it!
Thanks,
Slim