I agree... looking for a specific model (at a competitive price) can indeed be a real chore
& especially out west. We don't have a Montana but I can offer a suggestion --
Search by state, from this site: http://www.keystonervsource.com
It's a search feature & not affiliated with any manufacturer... we found it useful.
Right side of the page - choose the RV and the state. Some dealers provide the model number
in their title (listing), and others don't... so you may have to read through some of the ads.
Newest year is listed first, & pre-owned (if any) are last.
Have you tried the 'dealer locater' feature on the Keystone website? http://keystone-montana.com/index.php
It searches by zip code, & gives results within a certain radius, so use the zip codes of cities approx 200 miles apart.
Hope this helps, and good luck with your search.
Terri, the Chevy co-pilot