Who will hold that mbtc? I mean if you are the person who is going to handle all financial related to your gambling activity then you must go for registering your business which will get you a licence to operate. If you just plan a gambling activity for this community then you may go for hiring an escrow to hold the funds and to distribute the funds. I mean if you are not planning a business but want to host some 1vs1 kind of gambling activity then you may go for escrow and obviously you do not need any licence to host.

I feel it is not about idea but you are asking about legal things. I was entering into this topic with the intention of suggesting you some innovative gambling ideas but you are looking for something irrelevant to gamblers. I also suggest you to go for consulting a local lawyer so that you will get more clear idea about licencing.