Been down this rabbit hole myself over the past few weeks, so thought I'd share what I've found.
Short answer: not many places shipping to the UK right now, and the ones that will are quoting eye-watering freight costs that somewhat undermine the "budget-friendly" appeal of going the EG4 route in the first place.
My garden office build has been on hold partly because of this. I'd spec'd the 12000XP as the centrepiece after watching every YouTube video in existence on it, but the reality of actually getting one here is a different story. Most US retailers like Signature Solar won't ship internationally, and the grey-import middlemen I've spoken to are quoting 6-8 week lead times minimum.
Worth asking — has anyone actually gone through a freight forwarder successfully? I've been looking at whether the Victron Quattro route makes more sense at this point, not because it's cheaper (it absolutely isn't), but because stock is actually available and the UK support network is proper.
Also curious whether anyone's considered the Deye or Solis alternatives instead — similar hybrid-style spec sheets and you can actually buy them from UK distributors today rather than chasing shadows across the Atlantic.
What's everyone else's current thinking? Is the 12000XP actually worth waiting for, or are we collectively getting a bit dazzled by the spec sheet?