I took pictures of the process and created a quick guide. I plan on
repeating the cleaning again in a few months with a spray can of
foaming HVAC coils cleaning solution.
Here's the page - http://www.paulstravelpictures.com/HVAC-Air-Handler-Evaporator-Coils-Cleaning-Guide
I hope someone finds it to be useful.
Cheers,
Paul Michaels
Ft. Lauderdale, FL