That’s a lovely thing you’re doing. The mother dog and pups will be much happier in a home environment than a kennels.
I’ve had a very few litters of pups simply because I wanted the fun of doing it. I’d say the work involved is a couple of steps down from looking after a baby. It’s very rewarding as long as you’re set up in your home for it.
You'd be best to have the mother dog with you at least a week before the pups are due so she can settle in. A utility room or something similar is most practical. Either order a cardboard whelping box from the internet or have someone make you one with wood. The most important element is the puppy rail running round the edge of the box which prevents a puppy being squashed if the mum lies against it. I lost one puppy like that when the mum also had an infection with a high temperature.
Next, let your vet know the pups are due and find out what support/assistance they can offer if the mum needs help during the birth.
Puppies up to 2/3 weeks need very little care. The mum feeds them and cleans them up. She’ll need fed 4 times a day on a good diet of something like:
Breakfast 2/3 scrambled eggs and a small drink of milk
Lunch - high quality all in one puppy dried food mixed with tinned puppy meat
Tea - same as lunch
Supper - 2/3 Weetabix and warm milk.
Keep the mum clean, warm and comfortable. Use clean towels in the base of the whelping box plus a pad for her to lie on. A few short walks daily for her to get away from the pups.
When the pups eyes/ears open around 3 weeks, they’re ready for weaning. Offer a flattish dish of tinned puppy food mixed with warm milk. Teach each puppy how to eat. Clean them afterwards. They’ll be ready for 4 meals a day over the next week or so. Now the mum won’t clear up after them so use puppy pads changed frequently.
Around 5 weeks, socialising the pups is vital so have friends round to meet and play with them. Start to toilet train them also. Keep up the feeding.
That’s about it. As you can see, most of the work is from 3-9 weeks. It can take an hour to feed and clean up each meal. The feeding schedule for the mum and puppies ties you to the house but it’s ok to be away for a couple of hours.
Hope this gives you an idea of what to expect.