Info/Parts on VDO 140 mph Speedometer
 

I recently restored a 1966 250S Mercedes. On trying to fix the odometer I broke some of the plastic digit wheels. It's a VDO (108 542 16 01) 140 mph speedometer that is 4-3/16" in diameter with a max reading of 99,999 miles. I have two questions: 1) does anyone know where I can get replacement wheels, and 2) do they make a speedometer that goes to 999,999 miles that I could substitute directly for the original. Your input would be greatly appreciated since I have tried ebay, called speedo shops, etc with no success. Thanks much.