Looking for a corner bracket for a '73 Devon roof same as pictured. New or used. We had a set of new ones that came with the van when we bought it (16 years ago!) but one seems to have wondered off in the intervening years. Have tried to contact poptop-parts.co.uk who list a complete set on their website, but they're not replying to emails or answering phone. Alternatively ideas on who might be able to make one for me? New ones I have seem to be 3mm thick and don't look too complicated to make.