Built in quiet inverter generator for truck camper?

One problem with the small 2,000W-2,500W inverter generators is that they run hot under that plastic housing. Placing it inside of a compartment is going to make it run hotter. Taking the plastic sides off will make it louder.

Also, they are not designed to be bolted down. Driving with one running will likely cause the oil to "slosh" and it will kick off because it thinks it is low on oil. For TT or Class A, they are probably too small.