Tato,
You ask are the reproductions good enough?
I agree with what has been said... and....
Here is how I look at it. Since I am doing the work myself, I buy parts from the MB Classic Center. It is easy and I believe it gives me the highest chance that the install will go smoothly, the part will fit, the part will function as intended, and the part will last as long as a new part is supposed to.
If you buy a non MB part, you are taking a chance with all of those points.
Of course, there are exceptions to everything, but I simply take the route that I believe will give me the highest probability of success.
I buy from the MB Classic Center.
Now my decision is based on the fact that I want the car to outlive me or to pass on a car that is as good as I can make it.
If your motives are profit driven, or you just want to get by as inexpensively as you can, then you will use different decision criteria.
Good Luck and Enjoy the Ride.