Just finished removing, reinstalling new fuel (4) & water tanks (3). Took over me over a year!
Had to remove, reinstall (glass) all the wood partitions, bulkheads, floor etc...
Created a stringer system for a low long 80 gallon main tank just above the bilge.
Carr Enterprises (Florida) is a great source for custom fab aluminum fuel tanks.
All water tanks are stock polyethylene.
240 gal fuel, 170 H2O
Tanks are rigid foamed in place.
I do have photos to share.
Tom