A few tips needed on appliances in our new 1975 14ft scamper

No not sure on the exact way i should be lighting the pilot. I have tried to do what it says on the instructions with nothing working at all. Im worried that maybe there is a part to the pilot maybe that is needing a clean?
I cant hear any gas at all when i try to light the pilot.

Im buying a battery in a week so i can see if that helps get the fridge to work.

Does anyone know what the weight should be on a trailer for it to have brakes?