Hey man that looks like a blast, I really want to go there! What kind of costs are involved? (Assuming you have appropriate gear)
The track day is $130 a day if you pre-register. Also there is a multiple day discount if you stay for the whole weekend.
Here are some things I had to buy:
sleeping bag (my buddy brought a tent, you can also spend the night in a hotel, I think there is a days inn that's like $50 for Jennings riders)
I had to get some underarmor to go under my leathers.
I bought spare levers for my bike, I hear that's a big one
beer(lol), snacks, water, ice
My buddy already had most of the stuff for the pit i.e.
easy up, track day tools, cooler, chairs, table... I think that's everything. I tow the bikes up with my Jeep and a harbor freight foldy trailer (in the first pic).
This thread has some good info: