I found this website that might help you to decide what to put in your kit,
http://www.mommybydaycrafterbynight....y-madness.html
There was also a thread on the board about a quilt kit bag to make to keep all your notions in, this may be helpful for you whilst your recovering as well quite useful after. Even if you don't want to make the kit she has a list of what she stores in her bag that may give you ideas.
http://bionicgearbag.com/buy-the-pattern/
Hope this helps. Good luck on your surgery and hoping you have a speedy recovery.