30 yards is a lot of fabric, are you sure of your needs? It doesn't take much fabric to make the plates, so at most probably 12-13 yards for back and background?
Fabric, like every other 'ooo, shiny' thing is another way life sorts out the rich from the not rich
I'm rich because I have a stash built piece by piece over 30 years. It is small in comparison to what I see here, but still more than I can use. So like you, I can in no way justify buying more fabric, regardless of price or want.