So you are new to RVing but are willing to double tow a trailer behind the 5th wheel? I have been towing RVs for over 30 years and thousands of miles and the wife said NO to double towing. After much thought, I decided she might be right. You do know you really can't back it up without disconnecting the trailer? Most fivers are not made to accept much weight on the back bumper (hitch weight). Make sure to check this out and attach hitch to frame. Also check and make sure that double towing is allowed in the states you want to visit. Will you exceed the maximum length allowed? You are located in Denver. You are one brave soul for a newbie. Good luck.