is this too much?

Not bad pricing for what your getting, but not familiar with the makers. By the way, I just came back from Iraq and will be returning early next year. Keep your head up and buy some good stuff for the stang. That's what I did. Be safe.
 
I have it, I love it. It won't blow your mind with perfromance increase, but it is far superior to stock stuff for the same cost (or less) as OEM... and it's all matched components. I've been running the Performance Distributors kit for several years now with no issues.