Help in making a purchase decision

Hello Volvo fans! I’m looking for a new/used mobile kit. I’ve been offered a V50 now. I’m not sure if there’s a catch. I’ve already got the following basic data: V50 2.4 Geartronic Momentum, Electric Silver-metallic EZ 10/2005 35,000 km 140 HP 1st hand checkbook. last inspection 3 months ago at Volvo Audio Package High Performance Sound Dachrehling Anthrat Parking back seat tongue Driver + passenger RTI-Navi with hard drive LM rims 205/55 R16 Delivery package 1 (whatever that means) Should cost: 15.500,- Euronen !!!! Have still extracted a current NAVI software from the dealer 😉 According to previous owner accident-free, but a small parking rempler back right or left (I don’t know any more). But was removed from Volvo. Is this a good offer? Do you need your help?