Great idea, would love to see that.
Almost sure, but not completely sure, that @Garfield said a few months back that IRM Bulleid buffers may be available as spares in the future, as are Accurascale buffers.
The Accurascale buffers translate into Spanish as tampons, so hopefully the IRM ones don't get the same treatment!
Now, could you move the buffers inwards a few inches and take some more pics, please???