For open track events do you need to have a racing lisence or is that just for events? Its kind of unclear on their website. Also at what point do you need to have a cage or do yo not need one?

You need to go through their school. They dont recognize any other licenses on their track. The school is only one day and then you are good to go. I went to the school last year and plan on going to a few track days this summer. Its a fun small track.

I doubt you will ever need a cage. Only thing you need is a helmet but you can rent it at the school.