Anyone know of a good one around the Guildford area?
These people could do it (I got quoted £35) but you'd need to have the frame stripped back before giving it to them.
MIGS Ltd
Dorking
RH5 5EE
01306 631806
Like HTTP said, any industrial powder coater will do it for you, if you strip the frame yourself, for around 30 quid just look in the rather archaic Yellow pages
a place in Slough did my RL853 for £50 cash including the stripping and masking, as long as I chose from one of their stock RAL colours (which was pretty extensive anyway). About 5 mins off the M4 so not much more than 30mins from Guildford (which is where I live too)
http://www.nationwidecoatings.co.uk/
Not a flash job by any means but very functional and very hard wearing still after 2 years.