It sure sounds like your ready
Mine are 1 month apart in age and I got them from the same breeder. We got Chachi 1st then decided we wanted his sister. She want very healthy and we knew she had problems but we wanted her She died while we were waiting on here. My breeder had another female from another litter and we ended up adopting her. I think if you are comfortable with that breeder all will be fine. Good luck and I hope you find your dream puppy