I can measure and take photos if you would like me to ... let me know.
According to some, the party deck ramp is different that a non-party deck ramp. I don't know if this is true or not. Of course, the party deck ramp is different since it has supports for the guard rail system.
The issue is said to be that sharp pointy thing (chair leg) could poke a hole in the ramp covering. I have chairs that don't "poke" and have sat three full size adults on the ramp without issue. If I had little kids, there would need to be a guard rail of some sort (PVC and sunscreen, seems to be an easy way to do that, which someone on the forum has done).
The ramp is pretty weak and has been known to separate at the middle. I will have to deal with that if it happens, but so far so good. This has nothing to do with using the ramp for a party deck.
I was luck in that my cables were free ... stainless steel, swageless fittings, etc., but if I was buying or making them I would be either swaged pre-made or I would buy cable and fittings and crimp them or get them crimped.
Besides the cables, the easy way to attached to the camper at the top corners is to do it like the factory does it via quick-links using the existing holes. At the bottom (on the ramp), I bolted appx 12" of 2-1/2" angle (painted white) onto the ramp; drilled those to accept a shackle on each side.
I should have used some heavy duty aluminum angle, but I used what I had handy.
You can't see much, but here's a photo of my ramp.
XLR Hyperlite 29HFS
Ram 2500 6.7L CTD
A Modder's work is never done!