Thanks.
The elbows are just 90 degree conduit elbows. Much better choice than bending for me.
I made the bags out of cotton duck and waterproofed them with linseed oil. While I liked the xtracycle bags, there is no flap. I made these for less than 20 bucks for both of them. I added grommets to each end and laced them up makes it like 2 giant messenger bags that also open up on the ends. That way I could carry bigger things if I wanted to.