L.A 360..Magnum ?

I know if it were me I'd go to the next bore size on the early 360 and use 4" kit, promax heads, victor340 with 1/2 spacer, .engle .560 solid 108lsa, mancini billet time set ,10.2 comp and be done. That will do what he wants and then some.
Sounds like a good combo for sure. Are the Promax heads decent and is it better to buy bare . I would assume to 4 inch scat kit with cast crank is fine