I truly wish I had kept a counting of the quilting hours involved but let's just say it took me from mid July until late November to cut, piece, and quilt. I'd sit every couple of days and work for one to two hours but no more as my carpal tunnel syndrome would act up. There were weeks when I barely touched it.
This does not, in any way, help you,I'm sure but that's an approximation of the time involved.