Inside most garages, space is at a premium. So it is valuable for an above-ground shelter to have a trim footprint. The New Day shelter seems bigger on the inside than it is on the outside due to its 42" footprint being round, and because of its interior features.
The New Day Tornado Shelter requires a quality slab under it, whether outside or covered. Typically, the best place is inside the garage. If your garage is attached to your house, perfect! To decide exactly where, first imagine your garage devoid of everything. Then imagine a circle just 3 1/2' across at a spot where you would have quick, day or night access from the house to the shelter, without climbing over stuff or moving the car. We are not at all concerned if it is near a window or on an outside wall. The main thing is that you are inside the shelter when you need to be! Do you see that place where you could imagine this shelter standing?
New Day Tornado Shelters' normal all-inclusive price is $3800 + delivery starting at $1/mile from Tulsa.
With a little info I can give the exact price installed in your garage.