2-3 hours for the first, an additional hour for the second.
Tear down the forks to their component parts. You may need a damper rod holding tool. A 15/16" nut welded on the end of a 24" piece of 1/2" pipe will do. Some have luck with a large broomstick jammed into the top of the damper rod, I don't.
Drill three cross holes in the damper rod (it's actually a stubby tube), one of the holes is just enlarging the existing hole.
Reassemble, adding new fork seals and bushings if required. Since you have the forks apart, it's often wise to do them now
Drop the emulator down the tube, add/adjust oil level, install the fork spring. Keep in mind the emulator adds 1/2" to the spring height, so your preload adjust will be 1/2" higher "pre" emulator.
Rick