Dusty,
We just did the same thing. I'll tell you how I did it and why I took it out.
My first plan was to mount the generator in the compartment, and simply plug an electric fan above it to blow out hot air and exhaust. Well, the "your going to die" alarms inside kept going off, and my wife wasn't ready to die yet, and I was afraid of her. So I took it out.
But I'm the kinda guy that just cant leave things alone, so I got to thinking, all I needed was an external exhaust pipe.
So I took the lil Honda apart. If you take the exhaust side off and cut the welds of the end cap on the exhaust pipe, it will point straight down. You can then drill an inch and a half hole threw the bottom of your generator and the floor of the storage area. Its then real simple to run an straight exhaust pipe from the Honda under the rig.
Heck I even rigged up a little mirror so I could see to fill the gas. By the way a one gallon milk jug works great, don't spill a drop. Then throw them away so they don't stink up the place.
But then the "your going to die" alarms went off again. So I took it out again.
And you know, its real nice to have that storage area back again.
So plan "C" is put it in the truck, but I wouldn't put it in too tight of a box due to over heating. I had it shut down in the storage compartment once and in the back of the truck under a shell with the door open due to overheating.
But to be honest with you, were keeping it in the garage and going with solar and rv parks with plug ins. They even have water.
TimK