Tidy solution - admire compact builds.The card arrived today. Fits perfectly, fired up with no issues. I did have to go into BIOS as the clock appears to have reset itself, but didn't cause any issues.
I just fired up Arkham Knight which I could barely even get to run a 800x600 with all options turned off. It now runs perfectly at 1900x1200 with all options turned on. Well worth it.
This 7050 is £80 second hand, is it worth it?