For reference, and take all these numbers with a grain of salt (plus, I have no real idea how to value a business), the University of Alabama's athletics department revenue was $175M in 2015-16 [0]; the Buffalo Bills (per Forbes the least valuable NFL team) have a revenue of $386M [1], so more than double Bama.

[0] https://www.al.com/alabamafootball/2018/01/alabama_athletics... [1] https://www.forbes.com/nfl-valuations/list/#tab:overall