Thanks Gil, but I don't follow..."With the hydrogen, methane, and carbon monoxide I believe you can compress it nicely into a single bottle and that bottle purchased empty can be many hundreds."
Hundreds of what?
If those gases are not compressible in such a mix without condensation then you may have the same problem as with propane. I'm also not comfortable with having a bottle of hydrogen and carbon monoxide lying around the garage and doubt seriously if many gas companies would make such a mix for this consumer use. Guess it won't hurt to ask.