If you are considering a VAP Windstar kit all you have to do is email Steven@VAPauto.com
and ask this same question. He will tell you everything you need to know about how to make his kit fit onto your car. Period.
No matter what "kit related" obstacles you encounter he will be there to help you out. Period.
The customer service he offers is on par with American Muscle... You could not ask for more than that, simply because it doesn't exist.
If on the other hand if you are considering building your own Windstar set-up from junk yard parts you may be hanging out there in the wind on your own.
Dunno, I got his kit, he solved my issues, and now I am a satisfied customer. Period.
Just my 2 cents............
Email him and give it a shot...