Try these nearby states:

California

Washington

Arizona

Portland, Salem, Eugene, Bend, Medford

Prospective Oregon retailers should be able to outfit their store without too much hassle.

Check craigslist (website) for store fixture liquidations in Portland, Salem, Eugene and Medford.   Keep checking into the Bay Area (CA) and Seattle if you need to.
To the east, it's very sparcely populated.  You can't expect to find a closing grocery store or c-store  that can fill your order specifications.  It's worth a scan, though.

Grand and Benedicts is an establish shelving dealer based in Portland.  They are very active in used gondola shelving, and a stocking Lozier distributor.