Hornady Custom die (300prc) + Micrometer + ATip seating stem or ???

Hi all
Looking to get a 2nd die, for different bullets.

I have a Hornady Custom die at the moment with the ELD-M seating stem.

I have the seating stem for ATips, I also have the micrometer.

thinking of getting either a 2nd custom die, which will be permanently setup to have the ATip stem installed + lock ring at perfect location and the micrometer or another brand seating die ? (if another band then I will install the micrometer on the current custom die configured for ELDm)

Views/suggestions please.

G