I don't see how that would be possible. We would need to have a list from Forest River Inc. on who is attending the rally, then the site #'s they were parked at once they arrived (which I don't think is even set until they arrive on site) ...... in order to cross-reference.
Then, that would only apply to our member registrations who used their real full names in registering, and matched their Goshen registrations...... and still then we would need each members approval to post such.
The best thing to do is to open a thread, asking those who are attending, if they want to post their site #'s. The problem even with that, is that many members are going to be so busy with their Goshen activities, they may not even sign in to our forums during the entire event.