It’s so hard to find 5.0 6 speed F150’s anymore🫩

I’m shopping for a F150 with the 5.0 Coyote, preferably 2015-2017 since they still had the 6-speed and everybody says look for the 6 speed. I will not buy an Ecoboost, I want that 5.0 for the reliability. Lots of people have 3.5’s with over 150k, plenty more have had catastrophic failure before 100k.

Is the 10 speed really that bad? Because it’s almost looking like if I want the 5.0, i’ll have to settle for a 10 speed.