The problem with the 1XX series was the CPU was on the same card as a bunch of other chips for video, RAM, etc... So a 3rd party would have had to engineer a whole new replacement card for the 1XX. 

the 190, I dont know if they ever had a 68040 full upgrade for those or not. most likely they got a 5300 board and called it done. 

also, besides the PB100 and 190, I think the whole 1XX line were all 68030s.