The JohnDow 106 gallon tank that I ordered has a provision for an additional 10 gallon DEF tank that comes with its own pump and nozzle so I was thinking that I could add one and use it for diesel to give 116 gallons of fuel storage as well as provide some redundancy with a spare pump and nozzle. Then I checked the price! At $495 it's half way to the cost of a complete 106 gallon tank so cross that off my wish list!
And here's the GL7000 generator that will be using some of that fuel. Now that I have a generator I'm sure that the power will never go out again. It'll be interesting to see how well the generator handles running a welding machine. I didn't buy it for that purpose but it's always good to know one's options.
I bought some really nice air filled wheels/casters a few years ago for another project but will use them on a dolly for this generator. I'll need to weld up a steel frame this weekend and get the generator mounted to it. I'll also need to figure out how to hook it up to the house when needed. I've found an interlock kit that will work with my old breaker panel and will go the "cheap" but reliable/simple route with an exterior outlet that connects to a breaker in the box with the interlock kit to prevent problems.
Thanks to everyone for your replies with lots of suggestions and solutions to think about. I mentioned this to a friend and he sent me a link to a 106 gallon one stop shop tank that appears to be a good product. I agree with @DustyRusty that any tank that I transport back and forth needs to be DOT approved.
I have 100 and 200 gallon semi tanks that I use, they are mounted to skids that I just either fork onto a trailer or truck when they need filled.
Good part are the tanks are DOT approved.
I fitted them with barometric valves and an electric pump.
GO to NAPA and get a bottle of Stanadyne and a Bottle of SOLTRON (NOT STARTRON).
This will keep the fuel stable and bug free for years.