I have that exact generator and I can say it will provide ample power for your trailer. Contrary to the advertised 68db noise level, this generator is LOUD! I am not sure how they measure the db rating, but I can say this unit is louder than my gasoline lawn mower, and if you have anyone camping by you within 50 to 100 yards, they might not appreciate the noise. If you decide to get that generator, Cabelas sells them for $399. If you are going to be in the Phx area, you can drop by and see and hear the generator for yourself, just shoot me a PM and we'll set it up.
2006 Nissan Xterra
B&M Trans Cooler
2011 Nomad 206
Panasonic/Pioneer/Kicker ~ Audio/Video System
Days Camped /2009 / 33