$300 for everything? You're looking for used. Better start checking the local Craigslist. If you need boots too, buy them first and buy the ones that fit you best. Then you know what you have for leftover budget to buy a board and bindings.
"People say that marijuana smoking is going to get in the way of my career. I say to them that on the contrary, my fighting career is getting in the way of my marijuana smoking." -Nick Diaz