I am dealing with an unexpectedly heavy snow today so I've been busy
I'll give you a call tomorrow.
The best place to get a real sense of the type and variety of stuctures available for your needs is to join garage journal and poke around. There are so many options and variables that impact cost it is hard to compare what I have done in Maryland to the desert.
I can assure you you'll find 30 guys who have drawings, pictures, cost models with options, etc. for your needs in the desert.
Great resource.
Good luck!