I made a down flat that is pretty secksy. Really simple all you have to do is measure out what you want the kinks to be, cut them normally. Then, build your supports sturdy, the kink will have to be shorter obviously, I would go for some simple supports, like 24" for the top, 20" forthe kink(for the kink you will have to make an angled cut for whatever angle you want the kink to be at: this is important, think out for a while want you want the angle to be and make sure you have a picture of it in mind) 16" for the bottom. Just make it simple and smooth. Put supports on both sides of the rail, I recommend sandwiching two 2x4's together for the supports, especially at the kinks, mine have come a little loose and I had to doctor it a little bit. If you get the pvc pipes really plum to eachother, you won't catch an edge. Then you gotta sand the kinks out, I would use 200+ grit sandpaper for this. There ya go! PM me for any questions you've got! I can draw out a schematic if you need.