Looking for a rack to carry my R3

I had a guy tell me about a rack with a wheel on the back to support the Weight of the bike. Have not found it, but was not looking really hard either.
 


Hummm? Why would this set up be a recipe for disaster?
From whet I have seen, loading and unloading seems to be the most dangerous set in trailering.
Certainly getting up on and down the pick up bed. Lots of funny YouTubes about that.
The bike has a car tire on it anyway. Trailer rental is expensive.