Don't know how much room or how long your vehicle is. We had the rod Loft in our van that would hold 6 rods up to 10' long (probably even longer, but we don't have any)
Now we have a Crew Cab that we are putting a shell on, but still the bed is only 5'8" long. No sliding window, so we are looking at the roof mount.
I have been hassling with this for a long time cause I drive a Grand Vitara. Wipers work for short distances, bit I am afraid it's break down to go long distances.