There are some great pages on this site with questions to ask your surgeon and transplant coordinator. Ask a lot of questions! I find the surgeons like that a lot, and get all excited explaining everything to you. You'll have screening tests including blood work, a 24-hr urine catch, chest xray, CT scan of your kidneys, and all the regular annual-type stuff if you haven't had them in the past year. Sounds like you have.
Some surgeons require you to fast and clean out your colon before the surgery; some do not. As you get closer and know what your recovery arrangements will be, keep checking back here and we'll all chime in and tell you our "getting home from the hospital" stories, what it's like in the hospital and after you get home, etc. They're all similar and they're all different.
And BTW, the social worker who interviewed me (you'll have a psych evaluation also) told me the one person who is always against the donation is the donor's mother. Go figure.
Best wishes and keep us posted. It's an amazing journey but so worth it, IMO.