Looks like a great buy as you paid less than 50k. Very nice.
Regarding the mileage— of course I don’t know for sure but I would think the car has 113k miles vs 13k. Or the odometer stopped working. It’s a great car — don’t get me wrong. The wear on the seat pockets, the wear on the wood between the seats, the wear on the carpet, the repaint (based on overspray) the wear on the heater levers, the hand brake etc, lead me to believe much more use than 13k miles.
Again, just my opinion and nothing more. You have an amazing buy if rust is limited to trunk as it most likely is due to California life. Trunk rust is common. Glad you got it and do hope you drive it and enjoy it vs not wanting to add miles.
Thanks very much for sharing the photos and following up. The group appreciates follow up after helping with opinions.
Enjoy it !
Added note: once you evaluate the extent of trunk rust and if no perforations or weak spots - you can wire brush, clean, use degreaser such as por 15 degreaser (great stuff) and use por 15 metal prep. At this point I would be very careful if you use por 15 for final as it often looks like a por 15 patch job. I would asses and most likely use an epoxy primer/sealer that is compatible with metal prep ( zinc phosphate) such as PPG, and seal properly. Then apply paint. For nice car it should look great and not patched up. Again opinion.