Crikey, that's pretty decent, might be worth getting both mine done. It's a pity that I'd have to split it at one end or t'other to get it back on the bike cleanly – the rear's not too bad cause I can zip-tie it back rather than use the hole in the swingarm, but the front has to run up through the frame (it's on a recumbent – might get in the way of my legs otherwise). Still, mebbe there's some way I can rig it….
Must admit I'm a bit surprised they wouldn't give you a rough quote – I managed to chip a stanchion on some Magura forks a few years back and they gave me a quote over the phone – but mebbe that's more easily quantifiable. (FWIW, it was 60 quid – again, not bad at all, tho's it's bolt-together which helps)