As I now like to operate my pantry as a mini shop, I realised there just wasn't the space in the kitchen cupboards or the pantry 'under the stair' (a family joke as we live in a bungalow with no stairs).
After its first reincarnation, see here,
we decided to upgrade it further. It now looks like this:
I have yet to sort it out ready for when I decant all my Brexit box items into it. The hoover has gone into the spare bedroom, freeing up several shelfs for storage. All in all, a huge improvement.