Here's what you can do to get an idea of the spacer height on the new bike:

1) Go to http://www.bikesuperhub.com/bikefit/ -> Rider's Preferred Setup. Enter the measurements from your current favorite bike.

2) Go to -> Bicycle Geometry. Enter the geometry of your new bike here.

3) Go to -> Stem, Headset Spacer and Seatpost. Click on the Calculate button. It'll suggest the proper stem length, spacer height and seatpost length for your new bike.