I've already built my Cornscalas (with the old Bob Crites stuff: PH800 horns, CT125 tweeter, etc...).
Here my building 3d:
http://forums.klipsch.com/forums/p/125302/1267426.aspx#1267426
Now a friend would build another couple.
So, if I well understud, the best (regardeless to cost) is the Eliptrac 400 + Circletrac HF combo.
The best value for money combo is the Bob Crites Type C.
I well understud???
Sorry, but I can't speak american. ;-)