Yeah I know where your coming from. I just threw out more ideas. I suggest you check out pinterest. They actually have one car garage ideas.
The thing Brian I was considering your ceiling height. Thats why I stated your lumber rack to go to the ceiling by the garage door but not to exceed the depth of wall to door opening. The cabinets on that back wall by keeping it down 12 " you for sure can access all the cabinets but you gain that 12" space as a shelf plus you could still make a full lenght bench underneath the upper cabinets and if you made it like the one in that picture I posted youcould make it a flip out also. Just make some lader legs to put under the flip out. You could store the ladder legs on top of the upper cabinets. Well I like your shop and what ever you do will make it mor awesome.
Jeff Vandenberg aka "Woodsconsin"