No reason why it wouldn't run the AC, the EU models do. But why would you want an open frame construction unit? I had a 4500 watt Honda that worked well for 15 years, but it was only marginally quieter than a marching band competing against an airport runway.
My house is 2x6 framed and double sheathed, and we could still hear it. A trailer with 1 1/2 inch walls will hardly put a dent in the noise.