Thanks Gents, but since posting I kinda answered my own question! I phoned a Fiesta 'specialist' Who didn't know what mk my Fiesta was as it was a 96 model (!! The mk4 came in at 95 so I don't know how he thought my 96 could be on a chnageover year!) He wanted £35 for a wishbone...
So I turned to the failthful buypartsby.co.uk and they wanted £12 for one! So I've (hopefully) ordered all the parts I needed.

I used them in the past for wishbones for my Fiat Bravo. Fiat wanted £75 a side!! bypartsby wanted £12 again! Very recommended!