This comment said all that the Op need to know. I have read it twice with diligence. I would have assumed OP skipped it but the comment was merited by Op.
Its difficult because you need to have a solid bankroll to start with and an exeptional reach.
Form back roll is just the most problem people face in building their own casino. There is no doubt
First you need to buy a solution + license and that costs +150k. You need to pay monthly fees to the providers and a revenue share with them.
One of the reason new start ups do not last. A very new business is over tasked. It is very risky that you have to invest very much and wait for profit on the long run.
I just brainstorm but an idea could be to invite one of the streamers to get a share of the company instead of just being an affiliate. That could maybe open some Doors to a big audience quite fast.
One of the best ideas to go with. I see this as workable when all the legal papers are intact. With this much won't be invested in promotion anymore.