The E-32-3 has designed-in stern compartments for a propane bottle, but the factory might have alternatively installed a CNG system. No matter the fuel, any hose from 1985 is about two decades (+) overdue for replacement. No reflection on the OP either, since most of us owners seem kind of laissez-faire about hoses.
Me too -- I never replaced any of the fuel system hoses until I found that one of the OEM copper diesel lines was so "beat up" looking that it seemed best to upgrade it and all the other hoses in the system. I noticed some checks in the outer layer of a couple of other OEM fuel hoses also.
Our boat was not equipped with a factory propane/CNG system for the galley, having a stock Origo range. We got lucky.
For current recommendations I would ask my insurer (discreetly, "just asking for a friend") what their requirements are. Or a good surveyor, I suspect the hose replacement interval will be shorter than you might prefer.
Look for new hoses and connections with the specs printed on the hose.
The inherent dangers of gas makes owners (and their insurers) cautious about preventative maintenance.