"The exact same radiator I bought in 2016 for $114 is now somehow Worth $248? HOW????"
The radiator I ordered cost $158.79 with a 12 month warranty. My entire order with tax and shipping came to $242.xx but that was with wrong parts so the total was probably closer to $210 or so. I was quoted a little higher than your price from O'Rileys and that didn't include tax.
I'm kicking myself a little because my original radiator has a boogered up trans fitting, and I thought about buying a new radiator when I got the truck almost 7 yrs ago, but it wasn't leaking, so I just got in the habit of checking the trans fitting from time to time. If I remember correctly, I saw a price of $99 back then.
My tank didn't separate from the aluminum, it just split across the front of the tank.
Oh well, hindsight and all that........