So, the advice seems to be that in the UK, dragging (on foot, with a winch, or towing with a car/quad) is just the way it's done.
I find that interesting considering the popularity of "packing out" deer, particularly in the US. I get the fact that our terrain lends itself better to dragging but I am surprised that so few SD members carry their deer nonetheless.
I thought that
something like this might be more common but alas it looks like I'll just have to invest in some blue barrels...... And a Jimny; thanks
@SussexSteve