2. All the pistons have the same 4 strokes. The valve pairs do the same thing for each piston/chamber. Each plug fires it's designated piston at TDC compression of that cylinder. Now forget I said all that. No. 1 is all you care about.
You see that 11 oclock is 180 from 5 oclock so it indicates you are 180 out. Rotor at 5 oclock at no. 1 piston TDC compression , that's it, that's no. 1 spark plug wire location when cap is on distributor. The rotor will probably be a little past pointing at the distributor hole, that's normal. hard to stop exactly especially when it's set to be advanced. i think you got it right in your mind now.
"Good to know why our motor doesn’t have a ball but a triangle mark!" NO, read my addendum. look for a mark/ball as described in addendum. The triangle is not anything for you. It's a factory assembly mark.
6. Coil good, get proper button switch. I linked that part number and vendor on page 2. You are probably OK for now but points may get somewhat damaged if you run too long. The side terminal switch allows for two coil connections, One for starting only, because starter takes so much power from battery, points get direct connection, when truck starts and foot it lifted, the switch then sends power to coil thru ballast to protect points (reduces voltage to about 8-9 volts while driving).
I did go over how to wire these parts in a previous post.
7. I see you understand the gas thing but you are not ready for that. Make a list for the visit of things to ask.
