I agree with what the other guardians have said about basenjis; just want to add that I don't think any dogs, unless they are relatively inactive seniors, should be left alone for ten hours.
One can't put a time limit on how long it will take to acclimate a puppy to new surroundings and to get it to understand its place in your home. You have to keep in mind that basenjis can live many years so this is a long commitment, not one to be taken lightly. I've had three basenjis and they lived to be 14, 15, and almost 17.
They are absolutely wonderful dogs, unique in so many ways but, as the saying goes, they are not for everyone, and that's okay imho. My basenjis have always had a companion, and most of the people that I knew in Sweden, where I acquired my first two, had two dogs, not always two basenjis or one basenji and another breed.