So to start off this truck was a free one it because the guy couldn’t get it started and already had a new truck. He had informed me that the truck died on the highway randomly and suddenly, no noise no backfire no shaking or sputtering. He got it home it ran for 10 minutes then the same thing happened, this time it became a crank no start, he then also informed me of codes for the camshaft sensors so he had  them replaced and it didn’t solve the issue he had multiple people come over and try and try again to no avail. So I got to to the truck to begin diagnosis I tried to crank it and noticed a gas smell so I stopped cranking I also noticed the throttle body plate wasn’t clicking or making any noises when key turned to on position and gas pedal pressed. I began to look at bad grounds as a possibility I noticed on the passenger side under the truck there was a ground completely just hanging off the truck only one side was bolted down so I replaced it with a new connection of4 gauge wire, i then inspected the braided ground strap beside the PCM that bolts to the firewall to the back of the engine head I gave it a small tug and it immediately pulled right off the head. So I replaced it with a 4 gauge wire and ran it to front of cylinder head at an easier location instead of the cylinder head where it was, because that was nearly impossible to get to without taking the head off. I took into consideration that the new wire needed to be within a certain length, to compensate for that I used a thick gauge wire I had laying around that was around 20inches I checked for ground on both the heads and both where grounded correctly. I then got into the truck and noticed the throttle body plate would now open and close when the gas was pressed. I then cranked the truck and I no longer smelled a bad gas smell. But it still was a crank no start I had a new battery dropped in still a crank no start, I pulled the ignition coil packs out and inspected them they all where good! However the spark plug holes where filthy and where covered in carbon and debris I used and air compressor and cleaner to clean all the holes I pulled the spark plugs out and replaced them all with moto craft plugs new. I tried to crank the truck once more and it would sputter and pop occasionally but still refused to start! I hooked a jump pack up to the battery and the truck physically sounded like it was cranking faster. So I assumed maybe the starter was going bad! I did a voltage drop test while cranking it went from a 12.6V resting and 10.7 while cranking. I investigated the 12V power source connected to the starter I checked the main ground that came from the battery to the starter and it was reading 0.04 I  observed a really bad connection with a eyelet having extreme corrosion on that 12V line eyelet so I started to unbolt it and the copper stud physically snapped right off leaving half of it in the starter. So that’s where I’m at with it, I plan on replacing the postive connection with a brand new one replacing the starter. I have took into consideration that it may be out of time but it was compression tested and read fine. I also understand that it could still of skipped one tooth and still have good compression but none the less it would start even if it skipped one tooth. The codes that I am getting are as follows. Before I go diving into that as a possible issue I want to know if I should inspect anything else!? 

P0430

Catalyst System Efficiency Below Threshold (Bank 2)

P0305

Cylinder 5 Misfire Detected

P0300

Random Misfire Detected

P0012

A Camshaft Position Timing - Over-Retarded (Bank 1)

P0022

A Camshaft Position Timing - Over-Retarded (Bank 2)

P0345

Camshaft Position Sensor 'A' Circuit (Bank 2)