Gas tank placement

I'm thinking about removing about half of the foam in the back for a gas tank.
I'll put a hatch for easy removal and cut the aluminum face for a vent.
Anyone done this?

Sorry for the angled pic

Apparently not lol

Haven't done that myself, but that won't stop me from kibitzing.

I would make a wall to separate the remaining foam from your gas tank, so in case it ever leaks the foam won't get saturated.

I have not done this either.

My thinking is the portable gaso tank currently goes in the open area by the transom. You want to create a gaso tank locker in the enclosed area that currently has foam in order to clear up some space. If that is correct, I might consider leaving the portable gaso tank where it is and instead create the additional storage in the enclosed area that currently has foam. However, you will need to figure out how you would replace the lost flotation.

Of course, my assumptions may be incorrect, in which case I'll say "oops".