Hopefully someone will chime in with an answer for you there Yurtgirl.
Meanwhile, I have just had all my dreams come true in the form of an instructable-via-telephone with FigGem, which has sparked new entries on Triken's shopping list for the next couple of days.
EMT (2 sizes)
Shadecloth (4x 6'x16' or 2x 6'x50', whichever's available)
(we're already good with the 18" stakes. Strait and otherwise!)
I'm pretty much elated right about now!!!!!
Someone with some kickass drawing skills has to contact that man so this can be shared. It's brilliant!!!!!
Figjam, you ARE amazing!!!!