Originally Posted by SJX426

After stripping a couple of 3 frames with equivalent rust, I would not be concerned too much, but concerned to some degree, not being able to see what is under the paint. Look here for an example.

I was surprised at the amount of rust runners that were not detectable prior to stripping. I am glad I did. I did not find any rust throughs but some of the pits were good to expose. What I see in your pictures are equivalent to what I found on this frame.