Make life easier on yourself and use Doodle to pick a date. If there are a lot of people attending, you can simplify decision-making by creating a survey in Google forms to see what activities they'd like to do, how much they are willing to spend, etc. And make sure everyone is aware of the cost upfront. For the most part, everything will be split among the attendants (excluding the groom) but the total cost per person should be addressed before anything is booked. Organizing a bachelor party can be a lot of work, so don't be afraid to delegate some of the planning to other groomsmen.
Use this time to get to know the other guys, if you don't already. After all, you'll be in charge of them on the day of the wedding, so it's probably wise to remember their names/faces.