Welcome to the Forum, JeroenSc, glad to see you have joined. I own two Soderfors, an 88#, year unknown, and a 1907 157#. 40kg is 88#, so I know that is a fine weight for me. I would probably pay too much for that anvil, given the chance, so I am glad it is too far a drive for me....... That damage on the face might help keep the price down a bit, but it would not stop me from kaufing up the dough. That anvil would be just perfect for a lot of the work I do.
Good luck, and Welcome......
Robert Taylor