There is no minimum or maximum on the # of saws, just whatever you feel comfortable bringing, and usually folks let others run their stuff.
Just make sure you come and have a good time, and if you want to bring some saws that is just fine!
It is just a good opportunity to meet people with similar interest, have some good food, and play with just about any kind of saw your heart desires. Proper edict is to ask the owner first, but everyone is pretty good about sharing their stuff.
There will be old and new, small and large, stock and ported, etc, etc.
Other than that, just be safe and have a good time.