After pricing some of the bigger tanks, guns and hoses, I will probably just start off with one blitz 15 gallon tank and add another at a later date. Or maybe buy a small one for mixed fuel. I did see some 37 gallon rectangular tanks that I might be interested in. I want to mount the tank or tanks on the back side of the top basket. I am not too worried about the trailer being too small...it's a 16ft tandem axle trailer (picture might be deceiving). I had already considered the hose being too short and that wouldn't be hard replace. AZ Gardner--Have you considered or looked for a cap that would have a built guage in it? I would want that and/or carry a gallon gas can on the trailer for emergencies.