City Land bank free Land

Hello I came to see about how to get investors into opportunity zones. With another project I am working on I have developed a very good relationship with the city to get land from them for basically free. The people I am working with do not want to get involved in the area that is in the opportunity zones. I also have a builder. There are about 140 lots in a relatively small area, with about 50 of those in the zone. I am wondering how you would go about getting the $ without them cutting you out of the picture, it is city land bank anyone can get the land though a application.