To build the stand I used five 10' lengths of 1-1/2" PVC (plumbing) pipe. This leaves me with enough for two sections for hanging the background materials. You will also need eight T-joints and two 90 degree elbows. I also used eight endcaps, to make a neater finish on the feet sections. Total cost should be less than $50.
Do not forget a can of PVC cement,; as you are not using liquids in the pipes, primer is not necessary.