David_17,
sounds a bit expensive to me. I paided £310 for my twenty year old 1.6 Pinto tax and tested Sierra donor. I know you can't buy a donor but surely the parts bought seperately mustn't get any where near that, I'd say.
I'd suggest being patient and bagging bargains as they come along.
Here's a pair of hubs for sale that has just been listed and all ready reamed!
http://cgi.ebay.co.uk/sierra-front-uprights-hubs-kit-car-haynes-roadster-/250637306711?cmd=ViewItem&pt=UK_CarsParts_Vehicles _CarParts_SM&hash=item3a5b25cb57
BTW, I'm not the seller.
Have search on eBay with the 'completed listings' box checked, that'll give a good idea of the going rate.