Very similar to my setup with a Honda 6500 EUis generator.
I mounted my generator on a swivel table to be able to direct exhaust gases away from trailer. I did not wire a cord into wiring panel - I just use shore power cord and attach it directly into generator with appropriate adapter plug. Honda generators are pricy but are 56 Db which is very quiet. Runs all electrical needs including two ACs and convection microwave. ECO mode works very well.
Project is still a work in progress function. Need to paint wood platform. Installed a sealed on all sides and top box around storage compartment to prevent gas and carbon monoxide from entering basement of trailer - used some old formica panelling with caulking to seal gaps (CrossRoads does not build square and true trailers - had to custom fit all panels.)
Now working on a lock mechanism that will guarentee generator will not exit thru doors while traveling around right-hand turns - reason for additional tie-down strap in last picture. Pictures should show threaded rod that assists in supporting front edge of platform by tying to frame above - when generator is extended, a heavy load is placed on front edge. 2X4 supports in back prevent tipping of unit - base to ceiling above - unit is only wood screwed to basement floor for position only - did not want to remove belly pan to install bolt thru floor on my Seville.
Unit is easy to setup - carrying 50 AMP cord is much more difficult! In future may have to consider direct wire with transfer switch.
Also installed a battery bank and two inverters, 1000 and 3000 watt capabilities. 1000 watt is used for our King Sized Sleep Number bed pump system and my CPAP machine - it is wired totally separate from normal trailer wiring and is used only when needed for naps when needed. No additional setup required other than turning on inverter unit and plugging into that circuit instead of normal wall circuit. 3000 watt unit is for emergency use only - heavy drain on batteries.