I need a new trim piece for our boat (14' runabout), on the driver's right there is a flat panel extending from the throttle controls to the deck and a square section is recessed, in the recess is an old stereo and some random circuit breakers etc which I want to overhaul. I'd like to get a new platic piece and cut my own holes to suit, as I'll get some ganged breakers and make it look a lot nicer.

The square recess bolts onto the back of a flat panel with a square hole in it, and I'm guessing the trim piece would be about 30cm x 30cm and recessed by about 10cm.

This is the only thing i could find that has a kind of similar shape to illustrate what i'm talking about - any ideas who sells this sort of thing? I know some plastics factories but getting a one off will be expensive I'm hoping someone will make something vaguely similar off the shelf!!