Nice job!! I'm a newbie also (1 week) and I was thinking of changing my saddle set to the PVC method, however I have a couple of potential issues.
1. The space between the crossbars on the trailer that I built are only about 8 feet. I was not sure whether this spacing would allow enough "sag/craddling" in the PVC pipe. I was planning on using 2" conduit PVC. Will it flex enough to "craddle" the boat?
2. How do I attach the PVC piping to 2" tube steel cross beams without drilling into the metal of having the bracing contact the kayak?