Iuse a wheeled tool box, plastic, that I have set up with a power panel. In the bottom of the box I have a one gallon can of fuel, the electric fuel pump and a small 12 volt battery that operates everything. I just plug in my fuel lie and push a button to both fill and drain my planes fuel tank. the box also has a large storage box for my bigger items, one of which is a spare small hand pump Ipicked up for 10 dollars. All of my flight gear is in the one box.
The syringe you see being use is for a bladder type of fuel tank. You fill the syringe with a measured ammount of fuel, squish it into the tank and hold the plane upright and suck out any air that went into the tank. Not a tank type that is used often bu sport pilots, Ihave used them for racing planes, these tanks get no air bubbles or foaming from vibration.
There are just too many ways to fuel up your plane to even mention them all. Whenever I think Ihave seen it all someone comes up with a better mouse trap.