Oh man, thanks for the pictures!
Let me throw a couple of bugs in the mix while you are able to go from where you are now.
Hows about adding foam in the bottom?
While doing this, what about raising the floor an inch or so to make it self bailing?
While contemplating all this, what about maybe a belly tank but leaving the floor boxes?
It's only money and time.
Sorry, these are some afterthoughts from getting mine water ready.
Please keep up with the picture progress.
