Splitter try contacting vanner71. (see user list)
It's been a while since he's been on here but the email in the profile may still been active.
He lived in Idaho but belonged to Misty Mountain Vans and the NCVC. If he's still in ID .....
I know he retired in '15 and hasn't posted since.....
Not too many vanners post here from Idaho. A lot of the Idaho vanners would travel to NCVC or the CVC for events.
Try searching for the Corn Cob Campout in Grants Pass, OR. There are contact numbers listed and they may know of active vanners who travel there from ID and maybe put you in touch. The NCVC on FB : https://www.facebook.com/groups/Northern-California-Van-Council-319980098123775/
That's all I've got unless maybe you can give the Colorado Van Council a try. http://www.coloradovancouncil.com/
They may know of ID vanners in your area that have been to their van-ins.
All worth a try.