Carl Zeiss Jena 180/2.8 for Pentax 67?

Hi everyone,
I was looking to buy a CZJ 180mm for my pentacon six, but it appears that i got a version with a Pentax 6x7 mount.
I tried to look up some information on it, but other than passing forum mentions that people own these, i can't find anything about.

Are these only made as completely custom conversions or where there official versions of this?

How well it functions on a Pentax ( i don't have one to test), does infinity focus work? Is there any vignetting on it?

I'm not really sure what to do with it, is worth getting a Pentax for this?

I attached a two pictures of this lens.

..looks like a P 67 mount but without auto diaphragm pin. Doesn't sound like a very convenient set up. I don't think it's a good idea to have both a P6 and a P67 as they are quite similar. Sounds like you are are already committed to P6 so getting the 180mm Zeiss lens with the correct mount might be the best option.

I've got a p6 mount 180 Sonnar that Id be interested in trading if that was something you were interested in. AFAIK they are all custom conversion so the quality of the conversion would be dependant on the skills of the person holding that dremel.