Instrument cluster Kph or Mph

I found car dealer that sells cheap good cars but they are being brought down from Canada. This means the speedo is in Kph. Is it possible to simply buy an inst cluster in Mph from ebay and replace. Will there be any problem with the function of anything on the vehicle. I understand the miles might not match and the cluster screws will show being tampered with, but we are talking about a 2500 dollar car and I only care about it working correctly.

You should be able to purchase one at a wrecking yard for a few dollars. You need to replace the transmission speed sensor aslong with the dash cluster since if will also be calibrated in KPH. Most cars produced in Canada and the US indicate both MPH and KPH so check the car you are purchasing as you may not need to change anything.