Detail photos of my tramp as promised.
Corner example -
The grey is marine carpet I wrapped around the pipe and glued with contact adhesive. This is where it sits on the Aka and protects the Aka paint.
The blue is 1" webbing with a stainless fitting on the end. I wrap the webbing around the aka and pass it through the fitting. I have velcro stitched on the webbing which is enough to hold the tramp on the aka. The silver bit on top is some aluminium screwed into the wood inside the pipe. This makes it easier to tighten the strap. The silver above that is a galv loop I had stitched to the top of the tramp. I had 6 of them fitted so I could tie tents etc onto the tramp.
Underneath of tramp -
This is the underside with the galv triangles attached to the material with the webbing. The purple cord is pre-stretched. Although these cords are done up tight, there is about 3" of sag with the medium dog. This makes it easier for her to not slide off.
The best part of this is that it actually strengthens the akas rather than putting additional strain on them.
I transport my TI on top of the car and this sits nicely on the rear of the boat with the front just tucked under the akas in the folded position. Yes, I don't disconnect the akas or amas, just fold them in and slide the TI on the rack but that's another series of photos to be done.
Hope this gives you the info you were after.