Loved reading the forum. TONS of great ideas... you mentioned the 109 having a measurement of 9 1/2ft...legal width is 102" 8 1/2ft..
as far as the refer, i drive a truck, and the Black an Decker 2.7cu or even the 3.7cu from walmart with an inexpensive 1000w Cobra inverter shouldnt drain the batterys to the point the solar charger isnt capable of keepin up. I run a 1000watt just because the simple fact of the 880w couldnt handle the cycling of the compressor. And I keep mine set at Ft Wainwright Temp...I always have ice cubes in my reefer. The work youve done looks AMAZING!
For CDL requirements, Im not even goin there, as even with CVSA, FMCSA, and CSA 2010, all states have different regs. CHP are just regular lawdogs, your best bet is to swing into a Weigh Station and talk to a DOT officer, not a Hiway Patrol. Because ultimately the DOT is the final word. Not the Hiway Patrol.
So, anyways.... LOVED the pic. Utility Trailer has trailer interior LED lighting, as does NAPA, and their decently cheap, as forklifts an freight knock em off.
Keep up the good work.