Specifically on drums (and I am no expert) what is it about the Glyn Johns technique (or similar) that would not give you the sound you want? Certainly simplifies the process:
https://www.recordingrevolution.com/...ording-method/
And 3 mics on each horn (plus room mic)? If these are perfectly set up during tracking then they could be recorded on one track perhaps? If not then are all the tracks really necessary during mixing? If I was confronted with all those options I think progress would be very slow as I experimented with all the possibilities. Others may be more disciplined!