I have a Starcraft Meteor PUP, 13' canoe and a Jeep Cherokee. Where is the best place to carry the canoe? On top of the PUP or the Jeep? It would be easier to get on and off the PUP, but I also have an AC unit on the camper. Still there is plenty of room. I am thinking about air flow when driving among other things. What is your experience, thoughts or recommendations?