Sounds like a great,well researched plan to me.You are right to question chemo.It's by far the worst treatment-nearly killed me when my white cells dropped to nothing.It has taken me so long to get some hair back and I don't look like "me"anymore.So even though you are better,the "cancer"look goes on for another 6 months.This cancer was a recurrence for me(after 7yrs!)in the same breast despite radiation.So I was told I couldn't avoid chemo this time. All you can do is what feels right for you at the time.Good luck with surgery.
Tonya xx