If you want to go beyond stage 1, I would go straight to a 120 and be done with it.
Yep probably your biggest bang for the buck and security blanket right there. 120ST installed before delivery. Roll it in to the cost (try and get them to give you 15%-20% off of the motor). You get to keep your unused motor and do a build or sell it.
You've got full warranty for 2 years and more if you do ESP.