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.
For sale: RPI 5 Touch Display 2 8GB Ram microcomputer. The set includes an RPI 5 8 Gb Ram board, Raspberry Pi 27W power supply, RPI cooler, RPI TouchDisplay 2, headphone and microphone adapter. The price of the assembled PC is 300 euros. Can be in dinars. Novi Sad. Telep.