CWRV Delivery

I have just recently considered doing RV hauling. I see so many locally on the interstate here in IL and really like driving. I already have a full time job but I work nights (4 days) and would do it during the daytime if possible and/or my off days. I was hoping that I could do the shorter runs that maybe the full timers wouldn't want and live about 1 1/2 from Elkhart if that is where the loads originate. My only limitation is I would be using a F250 SRW with a short bed and see many companies prefer long beds but the ones that don't just require a slider hitch. Do companies have rules forbidding you from having passengers (family)?