I had C 5,6 and C6,7 fused about 4 years ago. (still have a bad c 4,5 and c2,3 but they don't want to fix those at this point.) Actually had C6-7 done twice, the graft didn't take. I thought the surgery and recovery was pretty easy considering the nature of things, got out of the hospital the next day both times.
I was out of action for about 2 months both times. The first time I wore a soft collar at first, the second time i wore a hard collar for the entire 2 months.
If you have a real physically demanding job consider doing something else if possible. After the second surgery I went from being a construction worker to a social worker. Just be careful the first couple of months and do what your told and you will be fine.
good luck to you, Todd