Hi Bacho,
my local dealer, sited some 500km away near to Hamburg, didn't even know which part to chose (there were different mast versions he said...) .
i'm not necessarily looking for a new part, since this die cast aluminium is nearly faisafe. (:-) a second hand would do also nicely. But it should be mechanically o.k. , especially the righting holes shall not be worn out.
Let's discuss directly via mail- o.k.?

Norbert