Wow, lotsa very interesting ideas!
But (there's always a but) I'm a little uncomfortable with your take on Feral Combat Training:
'treat all of them as your Unarmed Strike with regard to feats, Magic Items, Magic Spells etc and damage (if your unarmed strike damage is higher) ... '
Here's the feat description:
"Feral Combat Training (Combat)
You were taught a style of martial arts that relies on the natural weapons from your racial ability or class feature.
Prerequisite: Improved Unarmed Strike, Weapon Focus with selected natural weapon.
Benefit: Choose one of your natural weapons. While using the selected natural weapon, you can apply the effects of feats that have Improved Unarmed Strike as a prerequisite, as well as effects that augment an unarmed strike.
Special: If you are a monk, you can use the selected natural weapon with your flurry of blows class feature."
I read the last part of the Benefits section as '... as well as effects of feats that augment ...' (I think my two added words 'of feats' are strongly implied). A more liberal reading would take 'effects' to include spells and/or items that augment unarmed strike. I can't see how a class feature (i.e. the scaling of damage with unarmed strike) can be considered an effect. Also note that other weapons which can be used in a monk's FoB do not have scaling damage.
I'm looking forward to your completed guide!