That’s no way to negotiate. Try this: hey Stephanie, sorry to hear about your medical. It looks like you had some great times in that airplane, and now it’s time for someone else to begin theirs. I am looking for an inexpensive to own and operate airplane, and this might be just the fit. I have a great place to tie it down right outside my back door, and would be thrilled to own an airplane purchased from another PoAer. I’m not sure the current location is very convenient for me to drop by and look at it, and getting out there would take a bit of advanced planning. Can you send me some logbook entry pics, maintenance records, etc from the last 2-3 years? What else can you tell me about this airplane, oil burn, average cruise fuel burn, blah blah blah. I can offer you $Xx,xxx cash.
Then you see how the seller reacts and go from there.