Ok..last night I went down to Home Depot to start buying some of the required materials. 1. They didnt have an 20" Sonotube as I expected. So I'll have to call a construction company. 2. The didn't have the right sized MDF. The "plain" (brownish with no laminate) only came in smaller pieces, and the only type that came in big sheets was covered in white laminate!! 3. They didn't have a circle jig for my router. Any idea where I can find one of these? 4. They didn't carry 6" PVC!