That may be the best thing afterall. Isn't that very hard to change? Does it have spot welds or just plain seam? You know, that is the best part of the thing that you would be surprised that other side is very good condition (at least for outside) Haven't stripped it but it look very solid stuff. I think what here is that previous owner just did bad repair for starting rust and after couple decades it has rusted peacefully under sealing and this is the result.