I'll definitely be getting foam for the bottom of the quiver. The arrow separators are a good idea, too, but this quiver that I have been commissioned on needs to hold 15 arrows with tips. So...it'll be rather large. I've got some efficient designs on paper already, but I'd be looking for a rack design like this, rather than tubes. I only need the straight line of grippers. I think I want two of them, 8 arrows long, each. I don't suppose anyone would know where to find these?