Well, the shelter is in and is awesome! Very pleased with the construction of the shelter and feel very confident in its ability to ride out just about any storm nature could throw at it.
It is a 10' x 7' x 6'3" tall (thought it was actually a bit shorter initially) flat top unit that weigh's a whopping 13 tons, so even it I had just left it on top of the ground, I doubt if much would affect it anyway.
Buried with about 5 inches sticking out of the dirt, the temperature should remain pretty stable year round. I will be running electricity from the house to the unit so as long as power is available, we will have it in there too.
Over the next few months I will be busy installing shelving and stocking it with my stuff.
It is reassuring to look out the back window and see it.