Bindings come with everything you need. You should probably get one of those pocket screwdrivers. And don't commit to the boots until you're sure they fit. They might hurt your feet, in which case flee!
Depending on your final boot size, you're more likely to be in the M/L range, I think.
In retrospect, "Let's get the goat drunk"
should have been my cue to leave the party.