if you are a bit handy you could build a rack for much much less than it would cost to buy one. I built this one (this is actually a duplicate of the original that termites got into after leaving it in the yard several years). this one has hauled a gheenoe, my outback with my wifes paddleboard and my TI. I use it while pulling the camper since I obviously cant have anything sticking out of the bed.
here is the first edition, when painted its hardly noticeable. I also take it off when not in use.
