Replying to Ok, I'm looking to go balls to the wall and I want advise

I'm gonna build a box this year, but not just a regular little flat box, thats one of the few things my hill can set up. I'm going all the way and showing my local hill how its done, a double kink. I need to get some general advise on the structure for this beast, so I have a good idea where to start. Right now I'm thinking start with a wood base for the lexan, cut to length and agle, to attack supports to and save the topsheet for last. I'm wondering if I should go with plywood on the sides and make it look like a box, or just verticl supports. Weight is not a concern, I have vehicles to move it with, and its proly gonna be built on temprory skis. I'm also curious about the coping, is it necessary or not, I'd rather not if I can just use thicker lexan. Also some advise for angles would be nice to have. Its going to be huge, like 10 feet each segment, and I want relatively mellow but dont let me forget I'm on a dub kink. And how thick should the lexan be? I want it to be solid and last a long time, and make it easier to attach coping or deal with the edges however necessary. How do you cut the topsheep to the kinks, just overlap it a bit? What do you recomend for paint? How much can I expect to spend for all this, its  30 feet of grinding surface, done the right way.