I am often asked event planning questions regarding drink recipes, how to set up the bar, and how much liquor should be purchased.
Below are some links to tools that can be helpful. These tools are not exact, and what is needed for your event may vary greatly depending on many factors. If you wish, I will assist in estimating your bartending supply needs. Of course, you must make the final decision on what is needed for your event.
A relatively thorough bar check list (maybe too thorough) can be found at the following link to a PDF document: BAR CHECKLIST For completeness, I would add to the list under Whiskey - Scotch, Bourbon, and Canadian. I would also add Red Bull as a mixer.