I will see what I can do with pictures, I know I have the plans on my computer at work.
All you need is a prefab building, check out
http://www.metalbldgs.com/ you will find the prices for these types of builds are very reasonable. Look in the adds in the back of popular mechanics and popular science, you will find building advertised for as low as 4K for something 20X40, I think. Our biggest cost was the foundation, adding electrical, and water/waste water will really drive up the cost. Just think of it as a prefab building on an 8' foundation. Then all you need is a few doors, even one or two will work.
The whole thing is really very simple, the reason we went to total encloser vs partial, is we plan on useing it for storage in the summer. To be honest with you guys, if we were not in need of aditional storage during the summer, then we would have probably gone with the standard open pile.
I plan to use up all my salt, and the maybe keep a few yards of sand/salt over the winter.
Geoff