I live in NC and I check Autotrader every day. There are several used manual Foci in the Virginia, DC, Maryland area. The ads don't say anything about the Sport package, but the alloy wheels in the pictures will tip you off that it is likely that they are Sport packages.
I have seen cars like this with 20-30k that are advertised for under $16k. I wouldn't pay more than what Edmunds or KBB says the car is worth.
If you can get one with less than 36K you can buy a Ford ESP plan that adds up to 4 more years of bumper to bumper warrant for $400-600. You can get them online at a pretty good discount to list price. I got mine for my Taurus at Flood Ford.