Parts for Duncan Cab on MF 188

Hi Guys
Im fixing up the old 188 for the winter and have got to the tricky issue of the duncan cab. The roof has conveintly lost its two brakets to hold her down, so she often hops off fair handy when you hit the bumps. Would be intested in a clean second hand one at for if they are about. She needs a couple of bits for the windscreen wipper aswell ( almost seized solid) and the two lollipop indicators. They are an intresting item, as the aftermarket ones have stems that are too short (and thick) to fit through the box section. Look quite useless aswell, white plastic, anyone with a pair of these would be more than intrested to talk to