Thunder RV is rhe closest dealer to the factory, Apache Camping centers in the PNW are both big Northwood dealers. You might check their web sites for used Northwood or Outdoors RV products. Might be worth your drive.
Have you considered a bigger truck and getting a bit larger trailer? 25 feet gets pretty cramped in a hurry. Moving to 30 feet could get you way more closet space, better kitchen, living room etc. At 25 feet you might have a crawl in bed room. At 30 feet you csn get a stand up bed room. Plus there are way more 30 footers.
Just a thought.