Andy
First off Welcome to RCUniverse
I have a GMC Sonoma and I use two spring loaded shower curtain rods placed on either side of the wheel wells. I covered the rods with 2" pieces of foam pipe wrap. I then put the wire shower curtain hangers in all the slots of the pipe wrap. Then I set the fuse on the bars and use #64 rubber bands to hold the fuse to the bars. The wings go on the same way only you have to tie two rubber bands together with a larks head.
I can get 5 planes in the bed if I put the fuselages on the bars and the wings on the floor of the bed. I mostly only have two planes on the bars with a profile on the floor under them.
I have road tested them up to 70mph without losing any parts.
DEG