If that 1980 Brougham is around 23 feet or less in length ... then it appears to be an outstanding height, width, style, and overall design for great off-highway boondock camping anywhere a TC can go ... but with way more room and comfort when you get there!
It's too bad that mortals cannot afford rigs new like that anymore in the U.S. built on, say, a 4X4 Ford E450 or Chevy 4500 chassis - instead of the watered down pretty-boy low-slung and/or too-tall and/or too-narrow-tracked and/or nearly overloaded-chassis wannabe RV's we have to put up with!
A 4X4 (if available) E450-based Coach House 221XL or 232XL Class B rig would be about the only modern U.S. models that may still come close to your 1980 Brougham ideal ... but Coach House motorhomes are not affordable. :(