Can you cook a whole stuffed turkey?
I wouldn’t. The cavity in a whole bird creates an air pocket which is problematic. Stuffing presents its own set of issues. You might find useful information in Baldwin’s Practical guide to sous vide cooking..
I also wouldn’t SV a turkey that way, but if you’re still interested in cooking a turkey SV, I did last Thanksgiving, and it turned out great. I have a post here titled Best. Turkey. EVER. where I listed how I did it.