Jackson Plating in Hounslow did my bits for me... Should be in Yellow pages.
I got one cocker annoed and another one chromed. Not just the body mind... Everything excluding the block the pneumatics sit on (can't remember it's proper name at the moment
) including barrels, bottom lines, back blocks, stocks, etc, etc
For £30 each.
If you do go down the non-paintball anodisers route take a copy of a paintball mag with you and say you want "that"!
Oh, and i don't accept any responsibility if it all goes wrong!