Tulane is my alma mater, so I'll chime in. This was a long time coming for Tulane, but remember, they had an on campus stadium from the 1890s-1974, so it's not like there wasn't any history of them playing on campus. Also, they got lucky with donors. The stadium is named for the Yulmans, a rich business guy whose daughter went to Tulane. The field is named for Tom Benson, the owner of the Saints who donated $10 million. The stadium cost $60 million. Anyone want to pony up? Tulane did run into problems with the neighborhood around the campus, because the school is even more residential than UM. They took it before the zoning commission, but lost. They did push back construction 2-3 months and cost the school $3 million. It's one of the reasons the stadium only seats 30,000. It's designed to expand, and there are plans to expand to 35,000 and then 42,000 within the next 5-10 years. That size is perfect for Tulane. Miami needs a little bigger. Start at 40K with the ability to expand to 45-50 if needed.
As for the stadium itself, it's great, and if we ever could build one, I hope it would be like this. And it could easily fit. Yulman was built right on the old practice field in between the AD and baseball stadium