I need replacement torsion bar bushes for my old w reg courier kombi. I'm quoted 430 at my local ford garage which I won't take up :P

I'm told the axle will have to come out and I'd be better replacing the axle but who's to say the replacement one would be any good. I really like the van so I'd rather have it repaired. Someone on the 'how to mend it.com website said there was a guy on ebay offering to replace them for 90 each side but I can't find anything on there now as it was a 2009 post.

Can anyone offer any advice on where I can have this repaired please for a reasonable price?