I really do think that anyone interested in this lens might know of the excellent work done by Conurus for some years now without the need for the slightly patronising "some guy in Canada" bit !
However best of luck in finding a new owner for this lens.
I didn't say "some guy," you did! LoL
In American English, the phrase "a guy" does not have the same negative connotation as "some guy." I apologize that this did not translate to you!