to fill in some blanks...
30 year lease with a buyout after 15 years
NY kicks in 600 million(418 million seized from the Seneca nation)
NY also will kick in a 100 million over 15 years for maintenance and 6 million(at least 90 million over the course of a 15 year lease) per year for capital improvements
Erie County (which set aside 1 billion) will kick in 250 million
Bills kick in 350 million
NFL kicks in 200 million
https://nypost.com/2022/03/28/buffalo-bills-secure-deal-for-1-4b-stadium-with-850m-taxpayer-bill/