I have a 40 year old Kenmore. Not the same model, but if my experience means anything, I would go for it. Solid metal machine, reliable, you can easily clean and oil yourself (no expensive servicing needed). Often wonder why I spent 2K on a fancy computerized machine.

Sorry, but I studied it closely and can't see how anyone could be sure without seeing it in person. The cabinet looks dusty. It seems unlikely that the motor would run if it's been wet. In any case, if it's been wet, you will be able to see rust and mold when you look at it in person, and at that price I would go have a look!

How can you tell that?? I studied it closely and see no evidence of it.

I had a Kenmore machine that was a workhorse for over 15 years until I finally burned the motor out - too much quilting, but boy did that machine love to quilt and sew heavier fabric. I upgraded because I thought I would get a better machine -nope, I bought a Singer from my sewing machine dealer that barely lasted 2 -3 years, then I just traded up to my Janome 4000, which I love.