
I'm not really qualified to give an opinion based on experience as I don't breed pups, so have no experience. However, I do think this woman has a bit of a cheek. She can't cope with the pup herself so what qualifies her to decide who else is best to take it on? Personally I would be worried that this little pup is going to pushed from pillar to post at this rate. I think if I was put in this situation I would give her a refund, take the pup and ask her to ask her friend to contact you direct. If the friend is really that interested she will contact you and pay the going rate won't she? Just my opinion.
edited to say - also by the friend contacting you direct you can decide on her suitability as a prospective owner