Not to rain on your parade, but it will be a WHOLE LOT less expensive to go 26 nosler.
I have a slug of wild cats
consider the cost:
Reamer
Full length sizer
bullet seater
You are looking at $430 before the gunsmith gets his hands on it.
https://www.midwayusa.com/product/101094039/forster-bench-rest-2-die-setForster benchrest die set is $92 and you do not have to worry about a reamer. I can suggest a great gunsmith that has one that is world class.
Loads are proven and available on line for the 26 Nosler, saving barrel life. Figure 800 rounds of barrel life with stock reamer, I would shorten the leade.
Best wishes