[Jim Downard]

Hey Blackjack, I'm a third generation family member in our construction company. You name it we have probably built it. For the size you're wanting to build, there are usually package deals from manufacturers that you can choose from. If you have never built a building before, you will definitely need to hire someone with experience. Erecting it is reletively easy, Trimming it out can be the *****, and it's the finial fit and finish that everyone notices. Here's a thought. Wood Pole Barn. Don't everybody laugh. My open bay is 30x48 x 12 high. Added to the side is a 12x48 lean too addition, but from the outside you can't tell as the 3 12 pictch roof is continuous from the center of my 30 bay to the edge of the lean too. It's built with 8 x 8 main posts and 4 x 6 end posts. Trusses are 8' on center. Walls have 2x4's nailed flat every two feet, and roof purlins are 2x4's nailed on edgs every two feet. Now, here's the inportant part. Go to your local lumber yard and by Typar Housewrap. At the very least place it on your roof under the metal. It will NEVER sweat. Then buy 1 1/2" Celotex insulation board and place in the walls between your 2x4's. This has a R-value of about 11. Fasten metal siding to the underside of your trusses and place 6" fiberglass insulation above it. Now use paneling of your choice to cover the walls and you have a very rowdy, nice looking, and well insulated building. 60 mph winds and you can barely even tell mine has movement.
A side note, when wiring it, run your wires on top of the wall 2x4's so they'll be hidden after paneling. Mine is completely finished with heat and lights and I have maybe $10,000 total in materials. I did the labor myself. BUT, If you really want a metal building, Those are good too. Just a little pricey for me. The last one's we built were manufactured by STEELOX located I think in Washington Courthouse, Ohio.

I could probably get you some manufaturer names in your area if you are really interested.

Jim Downard