We always do turkey day with my wifes family. The host cooks the bird and the guests all bring the trimmings. That way the stress and expense is spread out. It would be insane to try to do all that by yourself and have any time to visit or even breath for that matter.
You can make the cranberry sauce a couple days ahead of time. Do the pie baking the day before and get alot of prep done also. With that many people you could draft a couple to help you mash patatoes and make the gravy. You could peel and get the yams into the cooking container also the night before so all you have to do is pop it in while the turkey is baking.
I have always preped alot the night before any holiday glut-fest that we have had.