Many, many, many of us have done the swap. Very easy and will be one of the best improvements you can do.
I attached a Coleman catalog which shows many different thermostats. For my Greyhawk I used the 8330-3862 for the main area as it was heat/cool and the 8330-3462 for the bedroom which was cool only.
The probably are other ones available but I must say, these have been worth their weight in gold pressed latinum. I would never go back to a manual thermostat.
Make the change. You will be very satisfied!