You are fine.
The caliper pistons will adjust after bleeding and a couple of light presses on the brake pedal.
Make sure you have the caliper piston in the correct orientation to the front axle when you use the caliper piston 20 degree alignment gauge
When I did the front a couple of months ago, the rear caliper seal began to leak and it became the next immediate repair.
Here is a terrific link put up by member exitwound on caliper rebuilding by Scott Harvey:
http://www.theexitwound.com/944/brakecaliper.doc
GL
J_AZ