If you're in O'Fallon, Illinois and you register it as an RV it is going to require a Class B non CDL. If you pull the stacker trailer it is going to require a Class A non CDL.
Hayden & Jan 1994 Southwind 33L P-Chassis 454 2006 Chevrolet HHR OTY (Mini Dachsund)
It depends on the state you live in what license is required. In for example in Washington state noncommercial privately owned recreational vehicles require no special license regardless of weight.