If someone in CO or a nearby state wanted to purchase them and then give them to a rescue go ahead but I would contact the rescue first to see if the rescue would take them! You could also purchase them as pets for yourself. I would still tell her about breeding untested Bs, how bad the market is and how she should spay/neuter her adult Bs.
Does anyone know if her breeding dogs have been DNA tested for Fanconi?
I have the same philosophy about purchasing/rescuing older pups from petstores. I would only do it if the price was low enough and told the store owner that Basenjis do not sell well so do not order anymore of them. I doubt the store would if it was stuck with an unsold pup.
At the dog auctions, I have a price limit on what I will pay for a B and if there were many for sale, I purchase the oldest ones first as I believe they deserve the most to get out. I have been outbid many times for a B and have gone home empty handed-after driving from Houston TX to MO.
Jennifer