Skylight latches broken

Hello everyone, I have a bit of a problem with my 2006 Ace Award Tristar. The black plastic latch fittings which secure the lounge skylight in the closed or slightly open position have both broken. The spindle which allows the latch itself to rotate and engage with the pegs on the inside of the frame has broken. The clear plastic part of the skylight is in good condition . I assume the latches are common to most swift models. Is it possible to obtain replacement latches and fit them without replacing the entire skylight? How are they fixed to the clear plastic part? Thanks for any suggestions, Mick Rumble