Remove/replace K200 drift pins

Not sure if I have the right names/terms here.



I am trying to repair my OEM KT200 (?) entry door lock. I need to remove/ replace several drift pins (? small split round shaft) that holds*parts in place or acts as a stop for a lever. One of these is flush mounted. How do I get these out?



Also where can I get new drift pins and a new lock cylinder. Inland RV? local locksmith?



Thanks