you do come out with some random stuff!!!
stroeve do a nice set of washer, power steering, oil catch tank etc out of alloy and baily and allard also do alloy header tanks and other bits although bailey tend to do ford stuff rather than vw.
all smiles do alloy tanks but are bloody heavy and not very good quality.
haven't seen any brake fluid bottles but that doesn't mean you can't get them.
i've seen the roof channels flushed before but i believe it does take a fair amount of work. just because i suppose you'd have to fabricate sections of roof to match it all up without looking sh!te!
