I just pieced together a set of real SVT 10th anniversary cobra wheels. 17x9. IMHO they are the baddest 17" rims ford has put out and they were less than the cost of 2 team 3 wheels.
Unless someone can talk me out of it I am going with 275/40R17's. Nitto NT05. I was also looking at the Falken 615K but with my poor driving skills it will be nice to be able to flip the tires on the rims and get another couple events after I plow the corners off.