Stuff in the trunk??=trailer
I think its time to remove the rear storage rack and hook up a small 4'x6' light weigh trailer, I run into the same problem=I don't want to mess up the inside of the camper, so to carry all my camping supplies I got a M416 army trailer, some of the stuff I carry=LP bar b-q, LP fire ring & 5 Gallon LP tank, Tables, Honda 2K gen and fuel, Targets & ammo plus extra clothes for the wife & an EZ up awning, the M416 quarter ton trailer is light weight and tows great. I just picked-up a queen size mattress/box spring which I just strapped to the top. I sometime tow it with my sub-compact Madza2. It appears you are enjoying your camping in the Northstar. just my FYI=brian