I wouldn't use klasse for a boat, It may work for protection, but gel coat is way to hard for aio to do anything for scratches or marks on the boat. I would look at some 3m or meg boat line up of products, depending on how bad the boat is use like a resotorer and wax if its really bad, or a cleaner and wax if its fair. then follow it up with a coat of wax. For most boats that we do, all we do is a onestep process unless asked for more. This keeps time down as well as prices which customers like. Ive never done an interior so i dont know what that would cost someone to do.
Is this hull and topsides? If so then I think we charge about 380 or so for just a one step on the hull and top sides. I just googled the boat, and seeing as theres not much surface area other then the very outside of the hull to do, and then maybe polish the inside areas I think thats about right for your pricing. If im looking at the right boat, Im looking on the designers website so Im pretty sure i am. I would say your about right in line.