FYI.
I just bought a 2005 Canon 5D for £260 (the going price).
This was a £3,000 camera back in the day. It's a Pro camera, built like a tank with a 13Mp full-frame sensor. It's takes gorgeous images.
Strange to think, that after a year looking at upgrading my 6D to a 6D Mk2 or 5D mk4, I stepped back a bit and thought about what I actually wanted. What I actually wanted was a traditional camera that took digital images.
People may moan that it's "Grainy" at 3200 iso (well so was my Ilford FP4 film).
Highly recommended and likely to become a very expensive classic.