Don't know much about these or if it's a good deal, but I figured it was worth sharing.
$1199, located in Orlando.
Link: Mustang cobra supercharger
From the listing:
SVT COBRA 🐍 Supercharger. 99-01 2 valve mustang. This is a drop in ready factory supercharger.
If "factory," that's an Eaton M112, but IIRC they weren't putting supers on Mustangs until the infamous Terminators of 2003-4, which makes the listing description kinda odd.
Interesting that it is listed as for use with a 2 valve engine. The Cobra always had a 4 valve. Maybe this is a Ford racing supercharger to install on a 2 valve.