Argosy rear bedroom-inspect ??
Greetings Al's Cousin!
The Argosy has the benefit of paint which helps to minimize the potential for damage to the aluminum skin from salt air/salt mist. As has been mentioned, particular attention needs to be given to the galvanized steel endcaps and the seams where they meet the aluminum ... electrolysis could be more of an issue with exposure to salt water/salt mist. The potential issues for the chassis are the same for the Argosy as the Airstream.
While it isn't as common with the rear bedroom models, it can still happen. The coach should be examined for rear end separation. A cursory examination for sag would be a good idea as well, but I don't believe that I have ever heard of an Argosy with this problem - - but since the engineering of the two lines tends to be similar it would be good insurance just to take a look.
There aren't really any problems peculiar to the 1977 Argosy 28, but as with any coach this age any original appliance can be suspected of nearing the end of its useful life. Postponed or neglected maintenance issues also need to be considered. With its placement in a park for 10 years, new tires are a given as well as bearing service. . . brakes, shocks and axles may have issues from the long period of inactivity as well. Since it has been such a long period of time since the coach has been on the road, it may also need to have OPD valves installed on the LP tanks as well as updating the certification.
If the deep-wrap wing windows haven't been protected with rock guards, you may want to examine each of these windows to determine whether there is any pre-existing damage (or if any are something other than the original glass). As you have probably learned through your research these windows are very costly to replace - - and the new ones are tinted rather than clear like the originals.
Good luck with your inspection!
Kevin D. Allen
WBCCI (Lifetime Member)/VAC/Free Wheelers #6359
1964 Overlander International/1999 GMC K2500 Suburban (7400 VORTEC/4.11 Differentials)
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible (8.2 Liter V8/2.70 Final Drive)