I was just taking another gander at it. Both motors look fairly corroded. WD40 is fine but I don't want it to get much fancier than that.Agreed - once the entire assembly is out of the car - the hard part is over and to me it's worth the cost savings to just swap the motor.
I would recommend spraying a bit of WD40 and letting it sit for a second before attempting to unscrew the tiny phillips head screws holding the fan blade and motor in. (3 screws for each)
I ended up having a bear of a time with one of the screws that stripped as I was attempting to disassemble. I ended up having to notch it with a dremel cutoff wheel and use a flatblade on it.