Your focus will be - arriving at the venue latest
Tuesday 24th May (or even Monday 23rd) to find a decent camping pitch! There are four camping fields, so it makes sense that the later you arrive, the further away from the coaches you will be. You'll also be further away from Aldi and the wine/beer!
Ought to mention, the campsites are nowhere near the actual showground/trade area, thus the organisers operate a fleet of coaches (free of charge) for the campers throughout the weekend to visit the showground/trade area.
If you really can't make it until Wednesday 25th May, than okay, but expect a long walk every day.
I mentioned Aldi - when myself and the rest of the British arrive, we turn immediately right into the first camping field after the Camping Control cabin. There should be a British flag flying, so you are more than welcome to join us. If there is no British flag flying, then we too are arriving late! Wherever we are, obviously come and say hello.
Not too many British attend the show, so we should be relatively easy to find.
As for the show itself, basic but decent food at a decent price, make sure you have a ride in one of the organiser's Pro-Logic M.A.N trucks that drive the off-road course all day long.
Hopefully see you there!