Parking is around the stadium. You can get a spot for $10 or $15 dollars. I usually park somewhere around Central Baptist Hospital and walk from there. It is a flat hike from anywhere, so it is not that bad.
The aren't any great sports bars in Lex, really. Your best bet due to proximity and the shear TV volume is probably BDubs off of Harrodsburg Road. There are a couple of other dives, but nothing to write home about.
Tickets may be a little harder to come by, but should be readily available before kickoff. One thing to keep in mind though...scapling is illegal in Lexington, so buy your tickets away from the stadium. They have been known to fill paddywagons on game day around here.