Thanks Brian for the nets and Jim for the advice.
I only took a few nets out, and all PVC is pressed together without glue to allow for modifications. I already noticed that I will be lowering the PVC to rest on the yak to add some stability. Thinking some of the felt pads from Home depot will save the yak from the rubbing.
I also noticed that it does not take a lot for the yak to be off-kiltered when you add up the weight of the nets, so centering of the rack/nets is important