Touring Bike Rack Ortlieb Bags and flat surface

Hello,

I'm looking for a Rack to mount on the rear. Wheelsize is 700c.
I like the BLACKBURN XR-1 Rack, but it's nowhere available, do you have some alternatives?
What I want:

• Flat surface, no spring stuff, I don't need it.
  
• Rack must have center shelf, I don't want to add a vender.
  
  

cheers