Vehicle Preparation for HPDE

Hello, new member here. I was wondering if anyone local to the MD/DC/VA/PA area that has done a HPDE event or has gone down the Club Racing route that will be available this weekend (12th or 13th) to hang out and share some insight. I will have a few friends over to work on my BMW 633csi to prepare for the event. We will be installing the rear suspension, welding (yes, piecing together a rusty car) and sorting out the brakes. Possibly be working on my other cars as well (Alfa Milano and Datsun 240z) but it will most likely be focused on the BMW. Ultimate goal is to get a Club Racing License and see how far I can get with the older platform. Any guidance or elbow grease is greatly appreciated. PM me for directions. I live in Hagerstown,MD