I looked around a bit in the mustangii.net photo gallery, but could only find pics of the full engine compartment.
Mustang II Network - Mustang II Network - Factory Correct / OEM Photos
If you have AC and PS, those mount on the driver's side (AC on top), while the alternator and air pump mount on the pasenger's side of the engine (alternator on top).
As I remember, its standard for Ford to mount the alternator to the front of the head with the pivot bolt going directly into a threaded hole in the front of the head. There should be an aluminum spacer about 1 inch long holding the alternator off of the head. The adjustment for the alternator should be a curved bracket with a slot in it...probably attached to the air pump. Or there may be an idler wheel on a bracket. Its been about 15 years since i pulled one of these apart.
There is probably a diagram in the Haynes manual for the MII.