How to connect electrical in 1958 rambler

Oh, man, you guys needed to see the damage here. I wonder if I still have those Christmas lights. I showed a friend and he immediately said "rodent, chipmunk, squirrel" and the wires CUT in the AC unit-  mice, even the repair guy said he's seen wires simply cut. 
Ya need to move out into the country and see what I see. It's not aliens, it's not humans crawling under the camper or into the AC unit. Cut as neatly as with sidecutters. 
Just because you've never seen it doesn't mean it doesn't happen. 

So you are saying that someone crawled under my camper and cut wires, and someone snuck up to my house and cut the wires to the Christmas lights - because they were not chewed, it had to be a person, not mice or other rodents? 
LOL, that's great. 

Anyway, I suggest you naysayers take a REAL look at the picture. In the upper right area - look at the copper strands sticking out - NOT a clean cut like with wire cutters. 
Then take a look at the spots I marked - TOOTH impressions, holes in the insulation. These are absolutely chewed.
Anyone who has farmed and repaired wires in tractors, combines, barns, cars, etc. knows this is mouse damage. 

Ruby loye wrote: If their hungry enough....

There's a lot of "it depends" involved. Time of year, temperature, availability of food, etc. I've seen so many results of rodent damage - 7 years of farming and storing grain, combine and wagons and grain heads in the machine shed, wiring in the barn. Then living where I do on the edge of civilization, next to endless fields, about a mile from the river, fields and grass just about 50 feet from where I stored my camper and boat. And - rewiring cars over the years. A clean snip can be a mouse, rat, chipmunk, squirrel (the latter pointed out to me as he's had Christmas light displays snipped cleanly by those cute little critters). Rodents. I tried to find the pictures of the camper wiring damage but since I sold the camper a while back, I cleaned them off my server apparently. 
If they are looking for nesting material, they'll chew insulation off and carry it away. They seem to love it for their nests. I found a nest in my camper one winter - made of insulation from wires from a junk car I had and of all things, DRYER SHEETS. The nest was lined with both and there were baby mice in the nest (were being the operative word there - their lives were sort of cut short)
Funny thing about the camper wiring under the camper - going to the tail lights. I was able to simply strip ends, twist and solder the wires back together in some spots as they were pretty clean cuts. Other spots I had to replace a foot or two of wiring. It was a combination of both types of damage - clean cuts, or chewed insulation. 
I can recall having to replace one of the elevator sets in the combine one fall - turned it on, backed it out of the shop, engaged things to check everything out - had the access panels to the main elevator open and watched as paddle after paddle had a neat little arched hole chewed through it for access up to the next one and suddenly - stand back - the combine kicked a couple of freshly killed rats out the back, guess they don't like being shucked. 
There was mouse damage in the cab -luckily the wires were only cut and not chewed to bits so it was a simple fix. 

Set the black lead of your meter to a ground, clamp it, whatever it takes, ground that lead to a good solid ground. 
Then using only the red lead, touch each wire and watch for - yes, your analog meter movement. 
Don't sweat the electric part - I've re-wired cars far more complex than that one from scratch (electric fires, no such thing as replacement harnesses in the 70s and 80s)

Start your engine and enjoy it.  If yours is a stock 6 for an early Rambler, even easier - start it, take it on the road and perform the Dana/Perfect Circle break-in, done. 
Good assembly lube won't dry, it's sticky, a bit like STP or chain saw bar oil. Don't fret too much over it .....

Just be aware that not all battery chargers will put out unless it's connected to a load like a battery. Some will run no matter what, some will not - so make sure the battery charger, if that's what you use to power things for testing, is actually putting anything out - meter at the charger clamps. 
I have one that does nothing without a battery, then an older one that puts out no matter what is or is not connected. 
Also - even the 10 amps of a charger can cause damage to 18 gauge and smaller wires. 

farna wrote: When you set the meter to ohms and touch the ends of the probes together the needle should peg to one side, reading 0 ohms (hmmm BillD, do I have that backwards, will read infinite resistance -- may ohm reading?).