My house has a 50 gallon propane tank used for cooking (gas stove). It has been 3 years since it was filled. The company I use charges a lease fee of $65/yr. for the tank. The last refill was in 2010 where they charged me $7.65/gallon for 40 gallons (80% fill). I've called around and most companies only have 100 gallon tanks and their fee is similar. Can I buy a 100lb. (24 gallon) tank, the regulator, gauge and transport to/from a propane company?