[@LotusWarrior] tried to make heads and tails of your description...as a skyrim player you've lost me somewhere along the way...

First off are you planning an ESO based game or Skyrim based? 
Never got around to play ESO. But Skyrim is based on just 3 stats Health, Magika and Stamina, and with a quick online check you can find that it also stands true for ESO.

In Skyrim you can't choose an archetype, you actually have to make it. Also there are only racial bonuses.
In ESO you can choose a class and archetype. And there are racial skills in which you can later invest points.

As for the xp you said we can invest...how much do we get from the start...how do you gain xp in your RP...got more questions but I'll put em on hold until I hear your answers to these ones