3-5% with very low risk maybe, but with this type of risk no way. That is also 3-5% return on investment above the principle which is also returned. The standard return on municipal bonds during normal inflation is about 5% (which includes the return of the initial investment plus percentage above that) which is most likely considering this is a 30 year investment. Over 30 years you will need to get at least 4% on your initial investment plus a percentage above that. Anything below 10% would be a complete joke.
If you just took your money and put it into mutual funds, you could expect a return of 7-9% historically above your initial investment.
A good example is as follows:
Minimum Business Loan Rate:
Loan amount: $650,000,000
Interest Rate: 5%
Term: 30 years
Monthly Payments: $3,489,343
Normal Business Loan Rate:
Interest Rate: 6%
Term: 30 years
Monthly Payments: $3,8970,815
Basic Stock Market Return Rate
Interest Rate; 8%
Term: 30 years
Monthly Payments: $4,769,472,50
High Risk Investment
Interest Rate: 10%
Term: 30 years
Monthly Payments: $5,704,218
I have no clue how they can find anywhere near that type of money from events on the available weekends not being used by UNLV and the Raiders, and while also sharing any other income and not receiving any of the tax money.
You are not going to find anyone willing to throw away $650 million and only get back 3-5% with no return of the initial investment.