Everyone above has given you excellent advice and insights. I have no doubt you will build a phenomenal machine. The best part is that both of you have the engines to make it fly. It will be fun to watch your journey.
My vote is for Calfee, but I am prejudiced...We have one too. Spectacular ride. I have been riding carbon since the first days of the Kestrel 4000 and have never looked back. I raced triathlons for 17 years. When I switched to carbon from steel, I dropped my times on 40k courses, that I had ridden for years, by 10-12 minutes. Carbon makes a huge difference in performance.