You’ve started at least a half dozen new, individual threads
on this subject in the past 8 months, in different sub forums, trying to host a rally at your private campground.
At least the last several new threads
have seen 0 replies.
You have also promoted a rally at your private campground within other threads here.
I would submit that if folks are interested in renting available space at your campground, rally of Airstreams or not, they will do so.
You might take out an ad in Classifieds, for your campground and motel.