I would add Country Coach Magna, Affinity or Intrigue to the list. Great, solidly built high end coaches but you won't find anything newer than 2009. Foretravel, high on the food chain Monaco's like the Executive, Signature and Dynasty.
Or, Newmar Essex, Entegra Cornerstone. Your budget would certainly get a gently used, late model in most of these brands/models.
2019 Grand Design Solitude 384GK 5th wheel. Glen Allen, VA