you got the pressure bit right.
the glow plug is right on top of the engine, looks like a little nipple.
i'm even more of the mind you shouldnt do this by your self. you clearly don't have enough knowelege to do this propperly or safely, comming here was a great first step. please learn all you can before you even fill the tank.
a bigger worry is when you do get this done your gonna want to make it fly next and thats much harder.
if you live in the hills why dont you do a bit of slope soaring?