Hey there, and welcome to it. Sounds like at least philosophically, your background makes it a smaller leap from where you are into PB. Agreed RE: Atkins.
I'd say at only 10 pounds overweight, to focus on the transition into PB (which may still be challenging, esp. if you have resistance at home) and get yourself comfortable with that before figuring out how to adjust things for weight loss / ketosis. It might just happen naturally as part of the transition, after all.