Find a cover/ tarp maker but gonna be expensive !! Also check for old car collectors/ restorers as the folks that redo the interiors also make boat covers as a side line, for normally less money.
1st Choice: Places like Overtons sells custom, mass produced covers for the more popular hulls. I would look there, as well as other places for similar items.
2nd Choice: universal covers fit OK, but are much cheaper than handmade ones.
If your gonna trailer it, then custom covers are the only ones that last. Just to keep the dust off when stored then aftermarket/ over the counter will work
