Second hand record turntable - Which one?

Hi everyone, I am looking to purchase a new second hand turntable and found some options which I would like to get some advise on.

- Rega Planar 3 with Exact element, 2 years old - €550

- Pro-ject 1 Xpression with Ortofon Blue, 10 years old - €350

- Pro-ject Debut Carbon with Ortofon Red, don’t know how old - €200

Or should I just go ahead and invest in a new turntable? I have been looking to buy a Rega or a Pro-Ject for a while now but I don’t really have any experience and reference to compare, since the only turntable I ever owned was a Pro-Ject Primary E years ago. I am curious if it is okay to purchase a used one if it is in good shape? And how to look for signs that it isn’t. Or isn’t it worth the risk?