Good luck with your knee surgery. I just had both of my knees replaced (not at the same time, but in the same year) and I don't think that I even considered doing any sewing for at least 3 months after the surgeries. And you are moving, too? Oh, my, you are better person than I, Gunga Din. Even though I didn't have any problems with the surgery and also did my physical therapy like I was supposed to, I feel like I rolled up in an emotional little ball for a while and just vegged.
It is really very brave of you to take on so many projects at one time. You go girl and more power to you. Wishing you a speedy recovery for everything you have planned.