You want fuel storage? Tank shown here is good for 300 gallons. If fuel gets back down there, you could have some reserve. I believe the propane tank is good to go. It has 500 gallon capacity. No wet leg. It probably has a lot of years of service it can still do. If your propane supplier checks it out and says it has failed the test, I will refund your money. Some welding guys turn those old propane tanks into large grills. They work very well for that. My pricetag makes it easy to get into this deal. Call anytime; 785 657-0007. Thanks for looking.