The Red Bay FastFisher 166's cuddy or doghouse is a simple bolt on affair and would be simple to make yourself. Depending on the year, the molds may still be around or have been sold, but don't hold your breath, as it's usual to destroy the molds after the model run.
Making one would be simple and offer the opportunity to make it different, maybe in a style you'd prefer, possibly bigger (they had different sizes), etc. I could be plywood, solid 'glass, cored 'glass, whatever you are comfortable with.
Lastly, making parts this size from a mold isn't as easy as you might think without some experience and if someone owns the mold, I seriously doubt they'd permit a novice laminator put anything into their mold. If you could prove you had sufficient enough experence, they might let you rent the mold for a few days.