Welcome to the forum. Sorry your first post has turned confrontational.
Net time you are in Tualatin drop by Camper Outlet and look at a sample of a Bigfoot trailer. You will immediately see that they stand out from the others and meet most of your criteria. I wouldn't purchase one new as their size to price ratio is low.
I was in the same situation as you 8 years ago and I researched everything on the market. I wanted the best constructed one from a structural integrity standpoint and yet was a full width trailer. It took me 6 months to find the right used 25 ft. Bigfoot and I was happy I did. It served me well for 5 years and I sold it for what I paid with inquiries coming from all over the country.
You will need at least a half ton truck and disregard this post if you are over 6'-1" tall. Good luck with your search and please don't give up on this forum.
