Back in the Great Case Drought, I shot some of those Sako USA cases. Aside from everything else, they didn't work in my die very well -- an older Hammonds die. Toward the end of the drought, the Harrell Vari-Base die came along, & I got one. And that's why I have a .440 bushing.
Fine to get a "Borden" reamer. Just remember that (at least some) were designed for a particular situation, it's not like they were Jim's final answer to the PPC chambering -- because there is no final answer.
And IIRC, the "Boyer #3" reamer became quite popular after Mr. Boyer stopped using it. Nothing wrong with that reamer & the chambers it cuts, the "wrong" is buying something only because of assumptions about what the name attached to it means.