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.
I know you think you thought you knew what you thought I said,
but I'm not sure you understood what you thought I meant.