Here's a compromise !
Raise a new battalion as I suggested , with companies up in the Regimental heartlands , but with HQ Company co located with the Rifles in Davies St in Mayfair , complete with Officer's Mess , or at Birdcage Walk ?
The officers can then do all their personal training and admin in London , commanding their troops by zoom on drill nights and only having to actually be with their troops on exercise ?
As a lot of these officers are likely to be the sort who's jobs would never release them for a deployment , or will have other pressing reasons not to want to go on ops , it would be incumbent on them to find someone to replace them , a bit like the Middle Ages , when you could be excused military service if you supplied a replacement knight and charger or just paid for them in lieu.