The BL 15 MKI uses the same mountings for basically every ship it's ever been in. I have a model for Queen Elizabeth turrets that I could post, or you could contact Brian Koehler and get some physical termite armor turrets. Yes, HMS Hood's were technically "MKII" mountings, but they're virtually identical to the MKI especially the MKI(N) refit versions all of the QE class received in the interwar period.
I believe the Hood and Roberts turrets are the same: https://rcwarshipcombat.com/resources/hms-roberts-superstructure.151/
@rcengr did a great job modelling those and making them easy to print with an FDM machine. They are perfect for the Hood. The picture for the resource doesn't do them justice.