Have you asked Catalina?
They have these drawings, and they may sne d you copies. I got some basic line drawings of mine in the owner's book - a side levation/sail plan (standard rig, though mine is tall), a deck plan, and an interior/plumbing plan. As a result of purchasing several components, I have accumulated a few more drawings from them, like mast and boom assembly drawings, and other details. They are veyr nice, I'm sure they'll help you out. Why don't you ask if you may post them here?jv