From my experience I'd say that two weeks down time is an absolute minimum.
Also your mention of heavy PT, again from my experience is a bad idea. Take it very easy.
Surgery proof and prep your home. Clean, do laundry, groceries, supplies, pay bills, remove clutter, anything that you canget done before hand is a good idea.
You may feel well around two weeks post surgery as I did. Unfortunately I was on Hydrocodone, Oxycodone, and Valium. The meds made me feel better than I was.
There's all kinds of good tips here from sleeping in a recliner to using a dishwasher.
Search around the TOS forums here. People have posted some good pre and post op tips and experiences.