Jake, stop beating me to the answer to your own questions!! Or whatever I said!!!

I was going to suggest you take your drawings to Home Depot and talk to one of their experts. I love going in there - they use alot of contractors/carpenters/plumbers/etc. that know what they are talking about.

Also, based on personal experience, Build this thing 2-3 times larger than you think you'll need. You wil be amazed at how fast the collection increases.

Have you posted any pictures recently?