Well, I really hate to inform you, you probably won't find the quality you are seeking in any traditional RV toy hauler. If you really want something that will stand the test of time, get a livable horse trailer. Leave the horse stalls out and use the end for hauling your "toys" instead of horses. The "Quality" build of a horse trailer far exceeds that of any "conventional" RV Toy Hauler (Trailer or 5er).
If a horse trailer can withstand the weight of several horses, kicking the sides with their hooves, hauling bails of hay and straw and bridles and riding gear on the roof, and withstand all the poop and urine on the floors, those things are well built!
Just my thoughts, if you REALLY want something that is "quality".
And the human living quarters of those trailers are just as nice and comfortable as any conventional trailer.
