I'd love to. (but we'll be in the Gap the weekend you're at Jennings )
That said, if you do Roebling, be very, very careful... a big group of friends/aquaintances went about two months ago, and there were no less than 5 injuries (some major, all unrelated crashes) that day. There were several complaints about track conditions.
A few of us from Charleston have settled on August 19th in Jennings as our trackday. Although I'm pretty sure I want to do the Sept 1st in Roebling as well. If you guys are there or near, please say hi.