For a TT I'd actually stay away from used unless you're getting a demo or open box from a dealer. Buy something new from a company that does that price point well. Personally, I'd go with a Pro-ject debut carbon evo or X1 in that range. They're a good starting spot around 1k and have some upgrade options. They come all set up so you basically drop thr platter on and play. Come with a solid cartridge and upgraded tonearm.
Not sure what the rest of your system is but make sure you have a phono stage. If not, spend 100 on a Mani from Schitt or a phono box from pro-ject to start.