I think you've also seen this as well. If you could negotiate with WASD and get those steel backplates in bulk, I think it would be nice as well. Or the DIY solution would be to buy 1-inch C-channel metal struts and carve the mounts with the dremel. Idk, just throwing it out there too.
P.S. Pardon the resize fail. I don't exactly know how to resize photos on the forums.