Spanik
Well-known
Don't chop it up! Way to nice lens for that. You got something very nice for a very low price. That is somthing that only rarely happens.
Better look for an adaptor to get it to some lensmount you can use. Something to M42 will certainly exist. I do have one for my Sonnar 300/4 to P6 and M42. So it almost certainly will be possible to adapt to M42 and maybe P6. From there alomst anything is possible.
If it is optically the same as the P6 180/2.8 then you have a very nice lens for portraits at hand. If with the adaption you have right now you can focus closer than it normally does that is a plus as otherwise you need quite a lot of distance.
Better look for an adaptor to get it to some lensmount you can use. Something to M42 will certainly exist. I do have one for my Sonnar 300/4 to P6 and M42. So it almost certainly will be possible to adapt to M42 and maybe P6. From there alomst anything is possible.
If it is optically the same as the P6 180/2.8 then you have a very nice lens for portraits at hand. If with the adaption you have right now you can focus closer than it normally does that is a plus as otherwise you need quite a lot of distance.