Beautiful Plane!
I am thinking of building a series 7, because I want a Tri-Gear, mainly because my daughter wants to learn to fly. I have 30+ hours of tail wheel time in a J3 & a C120, but it would be better for my daughter to learn in a Tri Gear. That is the reason I am thinking of getting a Series 7 so it can be convertable. Once my daughter learns to fly I can convert it back to a Tail Dragger.
One question about your plane, what is the Cruise speed, Climb Rate, etc. ?