IF I was technically savvy.....
I'd build a 5.7 hemi with a 6.4 steel crank and a .010 overbore, for 360 inches . Then add the best heads I could find, along with an upgraded hellcat blower or twin turbos.
The guys offering the kit I found (takeout steel 6.4 crank and mahle pistons ) say it's good for 1100hp.
But I really like the takeout Nascar 358 idea too!