I don't even have a date in mind, just sending out feelers. Would there be more interest in a Western/NW Arkansas Meet or a NE Arkansas Meet?
NW Arkansas has I-49/ AR 549, War Eagle truss bridge near Rogers, old AR 68 War Eagle arch bridge near Huntsville, Bobby Hopper Tunnel, 1922 Arch Bridge near Siloam Springs
NE Arkansas has a couple sections of Ozark Trail /old Route A-7 (later US 63) plus a couple old bridges along there, I-555, a couple older truss bridges near Bono. It would be a little far for a one day meet, but there's also the Arkansas-Missouri arch along US 61.
I'm just throwing out a few ideas at the moment. Depending what kind of response I get I'll start working something up and trying to set a date (likely September or early October)