Don't forget. Speed loaders. Very important lol. I personally like to bring spare parts to fix just about anything pond side. Your milage may vary but there is usually a guy like me there who has most common parts and can do fast repairs lol. This is why I highly recommend using more common components rather than reinvent the wheel with my boat stuffings. If I'm out of that widget,odds are somebody's gonna have one pond side.
Also bring LOTS of your preferred patch materials lol. For a full weekend you can even make up pre glued and silkspaned panels to resheet at the hotel for day two. I love it when I see fresh balsa in the morning lol.