You never go full retard, once you go full retard there's no coming back!
Builds looking good there's actually a tool that allows you to change the valve stem seals in the head don't get discourage, your up in NorCal hit up Big Ted or Tedspec hopefully he can give you the leads you need. He tunes ECMlink I'm not sure about AEM you can find a dyno and hit up Beau if you want a AEM tune he'll travel you'll just have to pay.
Have fun with her.