When I first started the hobby, I bought the fitting set and installed it into the cap of a metal one gallon can. I started fueling by plugging the free hole with my finger and squeezed the sides of the can to start syphoning the fuel, and lifted the can over the plane to fuel my plane. It wasn't the fastest way to fuel but it was cheap.
Once I got into the hobby more I went with the electric pump. The 6 shooter seemed like too much work.
You can do the same thing by installing the fitting set into a fuel jug or you can find a metal can.