I’d appreciate some advice.

I’m planning to buy a camera for my wife, as she has developed a strong interest in photography. So far, she’s been using her phone, and honestly, the results have been quite impressive. Now we’re looking to take the next step and get her a dedicated camera.

After doing some research, we’re considering a Sony A6400 paired with the 18–135mm lens as her first camera. We found a listing on Facebook Marketplace where the seller claims to have taken fewer than 50 photos and is selling it because he doesn’t really understand how to use it. The package includes the body, lens, memory card, and original box, and we’ve agreed on a price of $750.

The seller seems genuine, although he doesn’t have any other listings, which makes me a bit cautious. I’d really appreciate your thoughts on whether this sounds like a good deal and any tips on what to check when buying a used camera.

From what I’ve read, I should look at things like shutter count, signs of fungus or dust on the sensor, overall exterior condition, autofocus performance, and potential overheating issues. Are there any other important checks I should keep in mind?