I have a 1995 Coleman Stony Creek, it has the basic ice box. I don't foresee us ever using it. Since that cabinet is taller than the other locations I think it would be the most logical place to slide a port a potty. To do that I need the full space. I did not see any fasteners holding the ice box in and wiggling/pulling didn't get me anywhere. Is it glued in or is there something I missed? All the other cabinets have a maximum height of 12 inches at the opening, and that is a bit too small for any toilet I have found. Is there a reason why a toilet behind a curtain is a bad idea? Is there a reason I shouldn't remove the ice box? Thanks!