I lived in Memphis for about 2 years, I can attest that that area does get high winds. Memphis is like the end of a tornado alley. Many times tornados would come across Arkansas, and either veer north, or south when they crossed the Mississippi river. Some of the locals say that the bluffs on the east river bank cause this.........
Likely your building will outlive most of us that frequent this forum. My current building that I'm installing my lift in has 10 ft walls, so I have about 5-6 trusses I'll have to modify for head room for truck cabs, etc. They will have to be of a scissor style modification to accomplish this. I wish the building was 12 ft, but it's what was here when I bought the house.
I have 4 acres that is mowed regularly, so I can identify with you wanting his and hers mowers, I'm currently looking for one more mower for the wife to give me a hand with the mowing. It takes me 3-3 1/2 hours to mow each time with a 52 inch Ariens zero turn. I'm actually looking for some type of used fairway mower because I have mostly flat areas that have minor obstructions to mow around.
Good luck with your new construction, I know first hand how contractors can screw up your plans when it comes to new construction. One of the most stressful times of my life was building a new home, and garage in 1992 in my hometown of Erie PA., but I survived it.......LOL
