Any chance Baylor gets and at-large BCS game if they win out?
Their chances are slim to none. Like 5% tops. Hell, even Texas has a better shot of getting an at-large than Baylor if they win their final two games - although their percentage is like 7% tops. Money and a willing-to-travel fanbase carry more weight than whoever's the best remaining team for at-large bids.
UCF if they continue to win is pretty much a lock for the Sugar Bowl against an SEC team, be it Alabama (if they lose in the Iron Bowl - unlikely), Auburn, or (less likely) Missouri or South Carolina.
Fresno State if they win out is a lock for the Fiesta Bowl against Oklahoma State, assuming they beat OU in Bedlam. If Fresno loses, then maybe Northern Illinois gets in if they win out.
Orange Bowl is likely Clemson vs. an at-large team, and that team is most likely going to be a Big 10 team - Wisconsin or Michigan State. Wisconsin's fanbase travels very well. Or the 2nd SEC team if Auburn beats Bama in the Iron Bowl. There is very little chance they'll take a 2nd Big 12 team.
Baylor's most likely destination, if they win out, is probably the Alamo Bowl. They may have a mild chance to be selected for the better Cotton Bowl...but it's not exactly a secret that the Cotton Bowl strongly prefers a Texas - Texas A&M matchup.