We are having a wedding July 28
we are going to have Roast Beef, Mash Potatoes, and a veg medley of baby carrots, yellow and green beans, rolls, gravy, horseradish ,served buffet style from 6:00pm -7:30pm there will also be a snack buffet set up at 9:30 or so that will have salades, veges and dip, cheese and crackers, meats and pickles.
the roast I plan to cook in the counter top electric roasters.we only have one oven and I am sure I will need at least 4 large size roast, I think sirloin would be the best cut.
and probably a 50lb bag of potatoes, and Maybe about 15-20lb of the vege.
do you think I will have enough groceries?

You need an appetizer/nibble table after the service and before the meal. Simple; fruit tray, cheese and crackers/bread, and one or two good spreads/dips. Covers the hour while pictures are taken. Especially important if there are kids at the wedding.