Choosing the best 5.7 engine and Transmission

I know it’s been a while but thought I’d update y’all on the input you gave me. finally came across a deal. I was able to scoop up a 2015 5.7 with the 8hp70 out of a wrecked charger with only 80k miles. Found it local and traded it for an old stand up jet ski I built. My ski was probably worth about 2500. So the way I see it I got a low mile engine and trans for 2500 bucks.
Seems like Hotwire has the harness I need. Just need to get the rest of the chassis work done then I’ll freshen up the motor!