Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.
I'll give away an indestructible stroller for a child's fruit donut, it served for 3 years, folds quickly and compactly. The handles are worn, dirty, I threw away the seat belts when the child grew up
