Re using cast iron rings?

Ok, so the final decision is im going to pretend I never saw that video and go with my plan A.

My plan A is to replace: rings, main bearings, rod bearings, cam bearings, timing chain, oil pump and gaskets. All of which i have on hand

I know for a fact the engine is in spec in regard to taper and cylinder measurements, I have a bore gauge and micrometers. I even have my own cam bearing tool and I've used it plenty.

I was never trying to "get cheap" with this engine, I was simply thumbing through YouTube to make sure I didn't miss anything on the prep and ran across that video. Then I started doubting myself because that particular youtuber has been building engines since long before I was born so I thought maybe he's on to something I didn't know about.

Based on the replies, I'm going to trust myself and do this engine the way I was taught in auto school.
The youtuber you speak of, makes a living off of making videos....not doing any actual quality work that he needs to stand behind. You would probably be wise to never watch any more of his "tech" videos, as clearly you are more interested in doing the job correctly.