Sir you bought a 5th wheel RV but you have an SUV.

[Goosebuster]

There are companies that sell a dolly for just this purpose.
But a lot safer than the OP.

What Is a 5th Wheel Dolly? Expert Explains

Learn about 5th wheel dollies and their benefits. Our expert explains how they work and why they are a valuable tool for towing fifth-wheel trailers.

www.theoutdoorhacker.com

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Thats a city folks rig, real men use the bed of a 1997 Ford Ranger for a dolly.

 

[Nuke And Juke]

This is called double trailer dolly. I dont see the big deal here...

 

[Timber Cruiser]

Shmelton u still got that pic when y’all flat towed JBs Jeep and boat to Arky?