Mate I can find stock now if you are willing to pay £2k+, you clearly don't know enough hardware retailers. I even see a workstation company still has their stock of 4090s that have not sold out yet as the general public doesn't know them and people in the computer field do. Tomorrow at work we have 4090s coming in for staff that wanted them from them for their home pc updates as most work from home these days and didn't want the 3090s at the time or couldn't afford them.
The tuf 4090 was available at one major retailer till after 5pm £1699 for sure because I was wondering to grab one or not then decided we have some coming in to work tomorrow that I can have a play with as I really don't need one as I need more VRAM for my work than just 24GB and why I have 3090s in NVLINK to pool VRAM and CUDA cores. I'm actually keeping an eye on 3090s and 3090ti's that we can buy in pairs to update some of the workstations at work that didn't get updated last time and get the NVLINK bridges at the same time as they can be a pain to find sometimes for 4 slot boards and then boards with 3 slot spacing too, so need cards that fit and in Noah fashion buy them two by two and making sure to have spares too in case we need to rma.
The 4090 is a fail for us at work this time sadly, so hoping next gen 5090s bring back the NVLINK and have more VRAM or we will end up back to Quadros (A series now) or titans if they ever come back, the 3090s were great for us and saved us a lot of money for our work as we don't need titan or Quadro drivers but we always had to pay for that before as we needed VRAM and as I thought would happen NVIDIA didn't make that mistake again adding NVLINK to the 90s and didn't even increase the VRAM this time.