The best thing to do before running down to the hardware store and shelling out 25 bucks for a bunch of mixed pieces, is to plan ahead. Do a simple line drawing of the layout you want to fit in the area you have. Figure out the simplest way to route it using only 30, 45, and 90 degree angles(very common connectors) and approximate the length of pipe you need. I recently helped reassemble the track for Hobby Central here in Pensacola. You can set it up, and use sand bags or similar to keep it planted. Set them in corners(where high speed overshots end up) and the ends of straight aways. Drill a hole in the connections of each pipe, and drop a bolt through to secure it. No glue needed, and you can set it up and take it down with ease. Also, mark each pipe at that connection,(write matching numbers on each to match up) that way, it's alot easier to reassemble. You'd be supprised how much track can fit in the back of a pick-up...
