Hi

I am currently putting together the interior of a small speedboat, its
my 1st boat so i have a few questions...if anyone can help would be
grateful..

1 Before i attach the ply side walls, is it wise to pack it out with
buoyancy aids..ie polystyrene?
2 Should i cut a hole in the side walls for access...right now all they
have is speaker holes.
3 Should i enclose the petrol tank or just make sure its secure?
4 Where is the best place to keep the battery? I realise no where near
the petrol tank!...do they come in enlosed casing?

Hope someone can give me some advice....

Cheers