Originally Posted by Graystroke
If you were going to go through all the trouble of hacking a pop up (read: cheap) for this purpose, seems it would be even cheaper to just get a 20' bumperpull flat, and put a hitch to tow the pop up behind it. Then when the cheap piece of junk doesn't work anymore, you can throw it away and get another and not have to worry about more retrofitting.
You are right about that being some tounge weight w/ the setup I posted, but that is a purpose built rig and will probably see very little time w/ out rigs on it.