About a month ago I started the conversion.
I started by adding 2" x 2" to where studs where behind the wooden wall
Then I tore it down and went to 2" x 4" studs and nailed them to the studs behind
Here's where I did a little electrical work on the wall that attaches to the house.
I decided to use a paneling that looks like brick ( and feels like it
Here you can see part of the garage door before removal
Here you can see the outside after removing the garage door and enclosing
I'm now in the process of building shelves and filling them before I start building my layout.
I plan to put down laminate hardwood flooring before I start the build. That will be the next step after the shelves.
Oh by the way each wall has it's own circuit and out lets are about 4' apart. This way I can divide my power as needed.