Exactly. I paid $158 for my Yashica 124 but I knew I was taking a chance. If it didn't work out it was off to Mark Hama, which I could afford. It's been fine so I haven't sent it.
Buy a meter, buy a camera hoping it's good out of box but realizing it might need service and budgeting for that. Save up if needed. It may be more expensive than you hoped but it is NOT complicated. We can't do anything about the price.
Download a manual for the camera and meter and go shoot some film. You'll catch on quickly enough. It's ok to make mistakes. If you do some research and don't over pay you can sell without much loss if it doesn't suit you.