Welcome, Maxime.
We bought our 230SL in 2010 for a reasonable price. But it needed a lot of work, and Dan (Benz Dr) has guided us over the years. But honestly I wish we had driven it for a few more years before starting a long and very expensive restoration project. We had a lot of fun driving it the first few years and now I missed driving it these past years while it has been in the shop. So it depends on your own wishes. Do you enjoy driving, or do you enjoy the time in the shop, working on the car? If the car is running okay, as the description on the sales website says, then you can certainly drive it for a while first. As for the price, it almost doesn't matter how much you pay for it up front if you plan to take it all apart and restore it, because the restoration will cost you at least five times what you buy it for anyway. If you do the work yourself in your shop, you'll pay for it with your time and sweat.
Good luck! Please continue to share your story with the community here.