That person either took very good care of the unit or did a great restoration job. The only update on that seems to be the rooftop air. I wonder what year that is. We have a major state park literally in our backyard that we frequently take walks in and we see a lot of 50's/60's campers restored to their original condition. Some look brand new.
2012 Eagle 320 RLDS
2012 Ford F-250 Crew Cab FX4, 6.7l PSD
3.55 E-locker, Timbrens