Fuel tank

[warthog5]

use a 12" sawlsall blade to cut the foam away from the tank.

I gott'a disagree on this. A leaky tank w/gas saturated in the foam is a bomb waiting to go off, when you include a sawsall.

My methiod has proven itself fast, safe and easy.
Use a blade from and 18in bow saw. [tree trimming saw]
Just the blade and cover one end with cardboard and Duct tape to protect you hand.
This type of blade a VERY agressive teeth and the 18in length will go to the bottom of the hull with ease and not pound the hell out of the hull like a sawsall would.