Rain is a factor but can be solved with a tarp tied across the top of the bed, pain yes! it is a pain but not every one can find a reasonable deal for a $600 camper. If I were going to invest that kind of money on something to transport planes with, then why not splurge and purchase a closed trailer for a few $100 more? for that matter you can purchase a 4 X 8 from harbor freight for under $300 and convert it to a closed trailer form around $600.

Randy