Like I said before, totally doable to milk by hand.
You probably know all these things, but maybe it’s helpful to reinforce some ideas.
It’s really good that you know the people you are getting her from, and that she already has been through several lactations ( I am assuming she has, at her age). It’s much more complicated for someone new to start with a cow that is also new☺️, to milking that is.
Hopefully, she is healthy, no diseases, has never had mastitis, and so on. Oh, and confirmed pregnant.
Not having milked before much, it will be hard until your hands get used with it. In my opinion, the more comfortable your position, the faster you’ll get better. Find a stool that will help, you’ll know what I mean when you’ll start. For instance, when I milk by hand I need to support my elbows on my legs, otherwise my arms get so tired right away.
Milking once a day definitely helps.
The cleanliness factor: keep her and the area she sleeps in as clean as you possibly can. Whatever bedding you choose to use, remove manure and
urine soiled bedding as often as needed, depending on season and climate you’re in.
After milking, use a milk filter to strain the milk, and cool it as soon as possible.
Feed her good feed, preferably start as close as possible with stuff she’s used to eat before you get her to your place, and make any changes gradually.
In you choose to milk by hand, I’d invest in a good stainless steel milking bucket. With care, it will last forever. After you’dw done milking, just wash it, and put it upside down to dry.
If you choose a milking machine system, I’d also not get something low quality. Also, keep in mind, to clean the machine, - for most types if machines, except surge milker, you need to have
hot water ( or be able to carry it) to where your vacuum pump is. So yes, milking with machine takes less time, but cleaning it takes longer.
I am not really advocating for one or the other, only trying to make a point that you can get good, clean milk with hand milking.