Thanks for all the responses. The pull out tray is an interesting idea. The main issue is that the generator barely fits inside, which means I have to squeeze it in by sliding the top in first and turning the generator partly sideways. Because of this, moving it is kind of a hassle and I don't think that a slide out would work unless I modified the box to be taller.
I'm encouraged that some people think that this could be done. I would never run it without installing a fan and keeping the front door open.
I'm interested to check out these mountain master boxes to see if they give me any ideas. Perhaps it would just be easier to add a second tool box that is slightly larger.
