Thanks. I think I know the answer to the first, since Joe Namath grew up in Western PA. I’m not sure what you mean by #5. I’ve heard about #6 before.
#5 is another of those Alabama to English things. Imagine a conversation:
“Hey I’m Fixin to run to Walmart, ya’ll need anything?”
“I need some stuff, can you Carry me up there with you?”
“Sure, hop in the truck!”