We've also been looking at bunkhouse 5'ers, however many get very long and very heavy--especially with a rear bath.
I'm just not ready to get rid of my 3/4 ton diesel SWR truck, and I don't want to be running @ 110% of it's rated weight. (There's a limit to money.)
We've been looking at Grand Design Reflection's 358BH bunkhouse trailer that's maybe 1000 lbs. lighter than many others on the retail market.
As far as I can tell, the Sierra/Sandpiper 365SAQ is one of the more popular units on the market. It's the one that gets the comments at the big RV shows.