How much Liquor

I need to order liquor for 150 person wedding

Im doing Patron, Ketel 1, captain morgan

Im also getting champagne, wine beer and triple sec but am more concerned about the vodka and tequila.. I wanna get enough bottles for the wedding I have no clue and either does the liquor person im ordering from lol

Count on people having 2 drinks during cocktail hour and one drink each hour after that.

So if you party is 5 hours long, count on each person having 6 drinks (6 oz of liquor)

I guess my friends/family drink a lot more than that.. I would say 3 for cocktail hour and then 1-2 per hour depending on the average age of the people.

Also, how are you setting up the bar? Are you having anyone man the bar for you? Maybe they can suggest what they typically have seen at weddings.