Liquor............. can I make it it to my designated number. so close 100 dollars more.... I am at 3500

For Latin Families people buying their liquors is a no go. They came to your wedding, might have gotten you something, traveled such as my cousins from mexico, texas, friends from florida. The last thing I want to do is assault them.... yet I feel like what can I do to not go broke. I am not going to pay a 1000 dollars every hour.... well I came up with a plan. I will put a bottle of Wine and Champagne on the table. I will put my own bartender at the bar 10 dollars a hour but he will not start work til 7 pm For the times we are eating they will have drinks on the table. You can get very good wine and champagne at costco for very cheap I do not plan on wasting more then 50 dollars for that. I am going to get one keg but those big ones of beer for 100 dollars, and then get 2 big bottles of bacardi and and 2 of tequila. 2 of vodka. 140 for that. I will have sodas and water no juice drinks. I will buy 40 bottles of coke and sprite and fanta, way cheaper then cans. a 24 pack is usually 4.99.... i am going to save easily 20 bucks. And for the water I will buy 160 bottles.Target sells 32 bottles for 3.39...... that is 5 packages for 24 dollars. In total to have an open bar I will only waste 220 dollars.  If it is done then I will tell the owner to open his own bar, but I think it is very smart of me to not open it when we are eating. I am at 3500 dollars and that is including the ten lb bag for 1 dollar that they offer at the hall.