I wouldn't even consider trying that one going through the scale house... Anything over 26,000 w/air brakes requires CDL unless you're operating under farm exempt or it is an RV. I wouldn't try to tell the state patrol that a bobtail semi (GVWR nearing 50K) is an RV. Probably not going to win that argument regardless of a not for hire sticker.
years ago, a friend of mime got stopped cold from his "countrywide" fiver trek by WADOT. He built a sweet F250 bullnose SC dually with arrowcraft parts. Kali didn't look twice at him and neither to ORDOT. WADOT otoh, didn't care what he beefed the truck up to, the VIN governed his GCVWR and that was the end of the story. The truck could leave but the fiver was there to stay until he found someone else to tow it with the proper weight class truck. Needless to say, all the people in his group was doumbfounded and yes, most were in tears. After getting the phone call, I drove the Nostromo up there, it took me a day and a half due to stopping in Portland to see friends. I swapped out trucks and I threw my keys at him and told him to go have fun, just take care of my truck. For 15 years, he humoured a kid full of mechanical questions and taught him all sorts of speed secrets for diesels. It was the least I could do for him and his family to enjoy a trip of their dreams. Six months later, I got back my truck, fully serviced and with a new set of tires. He didn't need to do that, btw. To this day, I warn people about WADOT every chance I get. The only thing good was I got to drive a hotrodded F250 SC dually that goes like stink and pulls like a bear. It also brought his family and my famly much closer.
Granted that makes me a fair amount of money (Road calls to the scale are $$$). We do the annual inspections too and let me tell you what, if it ain't right, it doesn't pass before it is.
