welcome jack to the foamie section! the best i can do is to applaud you for reading this whole thread!

i think it will be very doable to come up with a foamie to pull for your needs. build one of those A-frame's and put a foam tear on top. that should be way lighter than my 500lb one.
i did find the iron, but have never used it. i still have the bubbles on the front, as well as other places now. i seem to be the only one with that problem, i also seem to be the only one to use cinch straps, so i am going to say this is the cause. the foamie is still very campable though, just not that pretty.
now about that paper covering. i think i will be giving this a try on the second build. i am going to give a few scrap pieces here a test. i won't be using newspapers, as i just don't have them. but i will be trying the brown rolls of craft paper. i am just not at that stage yet, so i don't have it all figured out. i am still trying to get hubby to fix me up a space with a roof, so i can get back to working on it. it first has to stop raining here for him to hook me up with a spot.
now about those dogs.... simba is now 1 yr old and he graduates from his puppy classes today. i just hope it stops raining. nothing like having a wet collie in the car, or house.