Cast iron Dutch oven/lidded casserole dish (South Croydon CR2)

I want to start making my own sourdough bread and apparently this is an essential. They are so expensive and until I know if it's something i'm any good at and that I enjoy doing, I'd rather not spend the money. I'd really appreciate it if anyone has an unused one they would be willing to part with. The photo is for reference only to show the type of thing I'm looking for. Thank you for reading.