I'm getting my electrical panel all laid out well, but I'm hung up on the tower a little.
I found a source for cheaper pipe but the lengths are ~10ft. This makes getting it home easier but I need to come up with a strong cheap way to couple the pipe to make the tower. The pipe they sell may or may not have threads on some ends and I'm not sure I'd trust a threaded pipe coupling for tower duty. The coupling needs to be able to come apart later if I want to move it or change the tower height. I've seen some extruded aluminum couplings that are neat, they are clam shell clamping style and the guy wires attach to them too. Like the one in this kit.
Southwest Wind Power 27FT Tilt-up Tower Kit for Air Turbines - Towers for Air-X and Air Breeze @ AltE
I haven't seen them sold outside of a kit though, and I don't think they would be very low cost.