A group of us do a C&V ride at the Dairyland Dare in Wisconsin every year.
https://www.wisconsingranfondo.com/e...edium=calendar
We meet the day before, have a meal, and spend time checking out the old bikes before doing the ride. Gearing choices on a ride that hilly get interesting fast on an old bike.
Another possibility is to see about putting together a C&V ride with your local bike club.
I've been talking to a friend here on BF about putting together a C&V ride on the Wabash Trace in SW IA. We'll just pick a date, use the site for a bit of publicity, and do a ride followed by lunch. I think we'll get a decent turnout.