Can't choose between 2 turbos

Ill disent and say the smaller with the smaller A/R will spool faster and give you more useable power under the curve instead of a big hop up when the bigger turbo starts to spool. Stud the bottom, stud the top, ARP the H beam rods, forged pistons. O-ringed block with copper head gaskets...All the help the teen can muster for turbo strength and durability. Gen 3...just add turbo.