Undercoat rake for a baby puppy, for the first few days? Ok.
You have a small crate, good.
A collar/martingale and a leash -- good idea.
Baby gate -- yes!
Water and food bowl.
Toys -- lots of different textures, some to chew on, some to squeak, some fluffy, etc.
Enzyme based cleaner, for accidents.
A bell to hang around the door knob of the door you take him out of to potty. That bell will jingle every time you take him out to potty, and one day, you will hear that thing jingling and think, what is that? The puppy!!! And he will go out, and potty, and you will praise, and life will be a beautiful thing.
Training treats for potty training -- you can use cheese or hot dogs, lunch meat, anything for this.
Call the breeder and ask what they are feeding and have a bag of that kind of food on hand. If they recommend vitamins or whatever, you might want to lay that in right away as well.
Jenna, RN CGC & Babs, CD RA CGC HIC
Heidi, RA CGC
SG3 Odessa, SchH1, Kkl1, AD
Ninja, RN CGC & Milla, RN CGC
Joy, Star Puppy, RN CGC
Dolly CGC & Bear CGC