OK, first the good news. I put the box up on some 2x4 pieces around the
edge, couple of knocks with a piece of wood and a hammer and the bottom
popped out. Bad news is; I'm not overly impressed with the adhesive
properties of TB III.

Anyway, I am all ears as to what you folks feel would be a better
adhesive to us in this kind of construction. I don't really know what
"hide glue" or a "thermostatic gluepot" is. Do you have brand names
for this stuff that I could find in the states?

Thanks for all the advice, still good knowledge to have.

-Jim