This private funding sounds too good to be true, but worth checking out
Outer Harbor stadium proposal
On October 23, 2012, George Hasiotis and Nicholas Stracick of Greater Buffalo Sports and Entertainment Complex, a Delaware-based LLC, presented a rendered plan created by architect firm HKS, Inc. to the Buffalo Common Council. The plan included a $1.4 billion, seventy-two thousand seat retractable roof stadium, convention center, hotel and sports museum plan for the Buffalo Outer Harbor.[4] At first this plan was met with some cynicism, in particular because of the feasibility of the project.
On December 11, the company met with local AFL-CIO members to discuss the amount of jobs created by the proposed project, which was said to be 10,000. Stracick also disclosed that there are "15 private, secret sponsors" willing to fund the project. He also stated that no tax money would be used to fund a stadium.
http://en.wikipedia.org/wiki/New_Buffalo_Bills_Stadium