6 XM-L2 SRK clone mod suggestions?

I need suggestions for best mod-friendly 6 xm-l2 SRK clone. I saw few of these six emitter versions have single common emitter “star”, but I need host that contains “solid” pill with separate emitter “stars”. I am planning to build 6 emitter SRK with 3 XM-L2 and 3 Nichias 219a 92cri. Driver is not important for me because i am planning put in two separate Qlite drivers controlled by 2 separate forward/reverse clicky switches, so I’m asking owners of SRK-s what is diameter of the switch hole. Any other suggestions are welcome :slight_smile:

Oton.