Well, I was feeling froggy and decided to give the aforementioned td05-10a (https://www.amazon.com/Abcturbo-Turb.../dp/B07JX89LQF) a shot. For $265 I'm willing to give it a go. I'll have to reclock it. But it's got the same bolt patterns in and out, and no wastegate. And it's got CHRAs available for it if need be.

Between my block and head coming from AliExpress(not kidding) and my turbo from Amazon, this 4d56 in a Mazda is one weird beast ...