We got our storm shelter from fainstormshelters.com out of Tennessee. I contacted them through their website, and they completely delivered and installed our shelter. I wrote a check when they got here. It was just under $3K, and has been worth every.single.penny. We have the deluxe underground shelter, but there are several types available... like safe rooms, above ground, hillside, etc. Whatever meets your needs! We did not have to get a permit, as we live outside city limits.
Hope this helps!