I agree with puppy milk replacer. And, baby rice cereal. In another week you can start transitioning them to a good quality puppy food and milk-replacer.
Keep them warm, and be carful they don't suck on each other too much -- in that respect the bottle feeding is probably helpful. Do you still have to stimulate them to get them to urinate and deficate, or they doing that on their own?
It's a big job. Lots of feedings. And I would definitely have a kitchen scale to weigh them on, so I could follow the weights.
What happened to the other three live pups?
Heidi Ho, Odie
Joy-Joy, Bear Cub, Hepsi-Pepsi
Cujo2, Karma Chameleon
Ramona the Pest, Kojak -- who loves you baby?
Tiny Tinnie, Susie's Uzzi, Kaiah -- The Baby Monster.