I know of someone that's making a billet rack system for several bikes and I like the looks and functionality of his rack.
If anyone has a PB rack and is willing to trace the outline of the support brackets (both brackets, unless they're both the same depth and dimensions) then and he'll be able to make a complete rack for me... and others.
I like the looks of the rack much better, and appreciate the versatility as well as the lower price point- under $150 and it has Rotopax and Givi Monokey cutouts so you can bolt on the lugs and gain additional functionality
He's currently making these for the WR250R/X, DR250/360/650, DRZ400, CRF250, KLX250, and I'm hoping for the WR450 if I can help him get the bracket design. I'm also working with him on the pattern for a 2001-2007 Bandit 1200, I have that rack at home so we're working on the dimensions.