Business in Vietnam Phu Quoc

Hello, if id liked to open a vusiness in Vietnam what should i need to do?

Business plan: Open little football and basketball field, where locals and tourist can kick penalties and trhow freetrhows to get awards. Max employess 2-3.
I know i need to rent some land, but what is next step to open this kind entertainment place there?
Also id liked to sell there drinks (only, not food), waters, juices, bears and others soft drinks!
Im from Estonia and i think the business running only season time (october-march/april).

Best regards,
R.Rannu

Everything is kinda weird here, come and see ;) I was kinda shocked about the prices even I am Vietnamese, lol