the turkey baster or large syringe would take a long time due to the viscosity of the oil.
even with the pump i used, it took a few minutes of hard pumping (the spring in the plunger has a lot of resistance because the pump is design to pump fluid out and draw fluid in from the bottle simultaneously each time the plunger is pressed down or rises up)
Funnel & hose can get messy if you accidentally drop the contraption whilst pouring. You'll need a mate underneath to tell you when to stop as well.
in summary, get the pump
you will love yourself for it when you do the diff as there's no room for a funnel and hose job there