Plus 1 for the Detroit Speed setup!
I was fortunate enough to go around Charlotte Motor Speedway at the Mustang 50th this April with Kyle Tucker in the 66 Mustang Test car. We hit 167MPH on the back straight and took one of the high banked corners at 120MPH, yes thats right 120MPH - I couldn't see straight! It was friggen awesome haha

Their suspension truly works!
Kyle and Stacy are first class people and they have a very solid business. I have their Quadra Link in my 67 fastback with Roushcharged coyote (will be driveable next summer finally) and the only reason I don't have their setup in the front is because at the time I bought my front clip they didn't offer anything (Running a Roadster Shop IFS front clip)
The only thing I can say is their Sales team is still very new to the Mustang stuff and as such, its seems as though there are only a couple guys really knowledgeable on the Ford stuff. I'm sure this will only get better as they continue to develop Mustang/Ford stuff.
Anyways, hope that helps!
Good luck with your project