Update: I bought my ticket tonight after seeing that the event in Austin has SOLD OUT! If anyone is serious about going, you may want to consider getting your tickets soon.
https://www.radwood.com/
Also, I decided to take the Turquoise ZR-1 to this event, instead of a Callaway, since the car has a strong '90s vibe.
Hope that a few others are interested in attending, as well!
Scott