I have seen that various sppliers will be happy to relieve me of £50 to provide an adjustable transom mounting that will both support the mast and hold a trailer lighting board, but thought it should be within my DIY skills to make one up.
Does anyone have any pictures or designs of something similar they woiuld be preared to share?
Board of ply about 18mm thick, 6in wide by about transom depth deep. Lighting board fixes across the board with bolts and at the top of the board is a cut out for the mast surport. Paint and fix a gudgeon and pintal to the rear of the board to fit your boat.