Thanks for the followup - it's nice to see the result after the discussion here. I think you might have some people looking for the specs on that li'l heli-church. I know of a few places that could use one of those to keep the helicopter in out of the weather.
What's the rating on the roof as far as wind? I noticed you didn't go with a slab - is it anchored to the ground at all?
Can you give us an all-up ball park figure for this project? It would be interesting to compare to the costs of hangar space at some of our local airports, or putting up a "proper" hangar yourself.