randy, here's some more info that I didn't have time to e-mail you.
Here's a part you can get from fordpartsnetwork.com brand new
2R3Z 6F066-AA Genuine Ford 2003 Cobra supercharger $1199.99
on top of that, you will either need the stock plenum to modify:
3R3Z 9424-DA Genuine Ford 2003 Cobra upper intake assy, includes, EGR, Bracket, TB, IAC, and snake emblem $ 399.99
or the accufab throttle body and plenum that add 20HP to an 03 setup:
Ford Cobra Throttle Body & Power Inlet Oval 2003 CTB2003 $689.99.
note the throttle/cruise cable are on the wrong side for 03 cobras.
The problem with this setup is that you will have to raise the blower about 3" so the plenum and blower exit clear the back of the passenger side fuel rail. if you let it sit all the way down on the intake, it will not clear that rail at the back. It also may not clear the middle of the rails. Anything wider than 8" is a no-go unless you want to raise it atleast 3". If you look closley at the 03 cobra blower, it's already inverted. That also means you have to use a liquid intercooler between the intake and supercharger. That's okay though, it's the best way to go. If you do that, hook up with me and I can show you some neat intercooler stuff I am working on.
You also can't invert a lightning blower because the inlet would be downward.
The only option is a Jag blower or similar if you want to retain the air to air I/C, and even there I don't think the blower will clear the stock fuel rails (Based on j57lrt's pic).
Brian
p.s. you have mail.