Okay. So to sum up.
Alignment - Anything I want it to be.
Paladin - I can't swap the aura from one paladin variant to another, but since I'm allowed to dictate my own alignment, I can (in theory) be any paladin that I want to be. So, I can't be a Paladin of Freedom with the Aura of Courage from the standard Paladin, but I can be a standard Paladin
Ghostly Grasp - would let me use my unarmed and natural attacks without needing to have the Ghost Touch property, but ONLY those attacks - if I buy a magic sword, it will need the Ghost Touch property in order to ignore incorp miss chance.
Amulet of Mighty Fists - requires no numeric bonus, can be just straight weapon properties, but uses the Pathfinder cost progression, and affects all natural attacks of the bearer.
That about the long and short of it?