I've no idea your living space in Manchester, but have lived and worked in Europe for some years and know first hand flat space limitations. I moved around Austria and each space was quite studio small compared to what Americans expect. But then, you may be in a full cottage for that matter.
Your ARC equipment alone is quite physically large and coming in at over 150 lbs. shipping weight if my calculations are correct. You are accepting that shipping that far does not ensure safe transit. And what if you need repair on any of the pieces?
I know I'm wandering off the OP question, but why not consider having fun at audio shops in Manchester and assembling a cool compact British system there?
We all think differently, just my two cents. I could be way off base. Have fun with the fish and chips and spotted dick.