I would try and find more than two buddies. There should always be someone watching whoever is diving. With 3 people, if someone else is diving and you have a siezure, the person watching would have to decide if they are going to spot the diver, or assist you. With 4 or more, you could have someone take over spotting while you get assistance.
I really hope you find the number of buddies you need to go diving.
