If that's all you want to do, sure. But not for 10% of the cost. 30-40% more likely. And then what do you have? Same old stadium that you just sunk half a bil into.
Take a look at what they did in Cleveland: https://www.nba.com/cavaliers/releases/rmfh-closure-190510#:~:text=Cleveland%2C OH -- Rocket Mortgage,sports and entertainment showplace for
If you really want to perk up KBC, you need to expand the footprint and blow out the walls.