I use the same setup, but made my own cheap and not heavy leg extensions. I used 2" PVC cut 5ft long and I drilled 1/4" holes every 2" and use a 1/4" diameter bolt to stick in the pipe for the tent legs to sit on.on my easy up I had to trim the bottom of the legs to fit inside the pipe. Easy to set up, once the ramp is out, leveled and secured I put a the bolts in level the with ramp and the bottom of legs are the height as the ramp. The only thing I need to figure out now is the gap that's between the tent and the back the camper for when it rains.