The side blocks don't look bad, but the center support is drooping by about an inch.

 

I pulled down on it all, it will pull down a little more, so I don't think it's metal on metal, and therefore is not the source of my pinion-noise (normal noise telegraphed metel-metal to the body).

 

Do you have to pull the header to change the mounts, or just the 1st section after the header?

Can't tell exactly what is in the first two pics. Third pic is the trans mount and it appears to be visibly OK.

I wouldn't suspect it as a source of trouble.