Has anyone on here ever restored a boat?

I just bought a boat and trailer today.

Its a 16 ft mid 70's Larson 1600 Shark Special Edition tri hull with an 85 hp motor(i believe its an evinrude)

the boat floats, and motor runs(sort of)

Well im planning on it being my summer project, it needs a good bit of work.....is usable right now but pretty ugly. Im planning on a complete restoration, rebuild the motor, new paint, carpet, new upholstery, or complete redo of the interior.

Ill get pics and update soon, and will probably post my progress step by step starting in about 2 months.

So ive never owned a boat before, and am wondering if anyone else has restored a boat...if so where did you buy your materials/parts/supplies? Anyone know of any good boating stores or suppliers in the Pittsburgh region?

Any info/suggestions/advice would be appreciated.

Thanks