Replying to Few questions about my backyard setup

Well it doesnt snow here too often but i love skiin and i have ok amount of space to make some sort of setup. I would need some sort of material to lay down on a drop in. I've heard like indoor outdoor grass carpet works well, or turf with soap and water, can someone tell me which one works best and how much each are? I also am planning on making some sort of wide rail type thing. maybe 2 metal or PVC piping, depending on pricing, caulked (sp) to a peice of wood and spaced out so it still sorta resembles a box. and i also would like to know if an X factor take/landing ramp with this slick material (carpeting or turf) would be an ok take off. Basically im asking on sliding material and price, and pipe and price. and that ramp question. thanks fellas, just trying to have fun with out bstin the wallet of a 15 yr old