After looking at things some more today, I am a bit discouraged with what I saw.
I won't let it get me down though.
I had the unit upside down and went to remove the black vent on back (the evaporator coil I think, I don't know all the parts yet
)
I saw a bad rust spot on the bottom and got looking even more and it looks like the bottom of the unit needs replaced.
And there is a crack or seam in the trim on the lid that is starting to separate.
The good news is that the underside of the lid is not in that bad of shape.