Roger, you might take a look at this for a list of known nets. Looks like 7.251 is Southcars net, 7.197 is Norcars net, 7.255 is Eastcars net, 7.265 is SATERN net, and 7.240 is 7.240 Club net would not be good since they all operate multiple hours. Also avoid 7.200, I listened to it and I thought I was hearing Channel 19, just like 14.313.
We also might consider a roundtable rather than a net initially. I listen to the guys on 14.206 (or nearby) every morning (propagation is so poor they don't show up every day lately) and they move up to 40M in evenings.