I found the best pricing on Ebay, there is a store on there named ShadePro, I believe that has the best prices I have seen. Good luck, but that is about the best pricing I have found when I was searching. I ended up selling my trailer without replacing my awning so I can't say how well the service was. I do know if you have a commercial address available to accept freight shipment it was more cost effective for shipping.
When I called some local dealers in comparison they were another 400-600 dollars for the same model awning.
2012 Keystone Sprinter
Still sticking around for the good people and advice.