Do it turbo mopars are easy, basically bolt together.
I have the same header manifolds, picked up some used but still new set of turbos locally for $200.
Unstuck a old 318, did a quick ball hone, crank turn, it was like .020 & .030.
Piston pins were tight, ended up using a complete set of rods and pistons out of another engine, a member on here gave me...But the balance was off 240 grams.
Grabbed a virgin set of "J" heads out of my parts stash, had a valve job done with new springs, cheap $120 Summit cam.
I have less than a $1000 in a test mule engine, minus the turbo stuff, intake and carb. It should stay together for a little while.