Here's what I'm thinking

[macojoe]

I still don't think the liner offers much support to the hull? But you will know as soon as you open it up!

The real thing that stiffens the hull is the floor and the cap. So when you remove the platform and add flooring, then fix and glass the liner back to the floor you will be just fine.

Good Idea about using the sand bags to try different things. But you are using sand bags at the same time the tank is still in there?

I know, add sand bags to bow till you get the ride you want, then when you get rid of the casting deck, add same sand bags to the hull before you close up the floor, now you don't have to move anything ;) ;D