First order of business --->
A number of manufacturers have started producing exactly what you describe. In that price range you'll be talking gas, vs diesel. While there are a couple diesel coaches with bunks now, to the best of my knowledge they're a fairly new offering. Someone else may know differently.
If you're looking new, an $80,000 sale price would suggest you'd need to be looking at rigs with an MSRP at or below $110,000. That may be a challenge, but you should have relatively little problem finding a very nice two to five year old coach in that price range. There are a number of sites you could visit that will help you locate just such a rig. Type in your parameters and away you go.
Don't be shy about participating in our forums here. Someone's "been there, done that", and might even have an extra T-shirt for you.
Good luck in your search. I look forward to hearing how it goes. What you're looking for is out there, you just have to find the rock it's hiding under.