I don't have a cow for sale, nor do I know of any, but I can say that I really like handmilking my own cow. I started out with her as a six week old heifer and am glad that I did start from the ground up. That said, I have to also let you know that I am bulldog stubborn and won't give up until I figure it out - a good quality to have if you are starting out with a heifer that has never been milked before.
She's had two calves now and is raising her third foster calf. I like to sharemilk with a calf so that I have a relief milker for times when I'm too exhausted or if I happen to get sick. I went on a trip in early April for a week and the calf took care of milking for me.
I really enjoy handmilking, but I also enjoy her dry period so I can have a bit of a break. I REALLY like the dairy products we are able to make from all of the rich goodness that is just there every day.