Do you have any more pics of the trailer bracketing you added? I bought the exact same trailer yesterday and need to start on the runners and upper rack. My plan is to have my PA14 on the bottom and a Thule car top on top with 2 smaller 8' kayaks also on top, or a second Thule car top carrier.
Just wanting the see the mount points and joints, and maybe what size tubing used, etc. and with what you did, is it sturdy enough to handle the vibrations of the road and such, or would you go stouter.
I'm very happy with the setup and it has stregnth to spare. I'll get you some close-ups either tonight or Saturday morning. If you would rather me send the pics via email, let me know. I'm at firstname.lastname@example.org