I'm considering buying a used Maho MH 600C or 700C built around 1985. I was warned that replacement parts are very expensive.

Is there any feedback on:

1. typical wear issues with these machines;
2. at how many on-hours to expect;
3. what parts would likely need to be replaced; and
4. where in the US or Germany to get them for the best prize in case?

Thanks in advance!