^^^^ disagree....in one breath ," they looked after it very well"
In the next . it's intimated they were too idle /stupid / impoverished to give it a proper scrub down, maybe a jet-wash and then a few cans of WD40 /Duck-oil or even Waxoyle (latter is very good if you add~ 10% gear oil or trans-fluid)
This would have kept corrosion at bay .
even now, I'm sure someone with a bit of initiative could insert some scaffolding or box-section to reinforce it, with maybe a couple of support-struts on the outside.