Hey James,
As you'll imagine hand out wheels as well as tyres would be a nightmare due to the many manufacturers that will be represented on the day, therefore its 'tyres' only.
I will have supplies before the day itself if you wanted to collect yours early, not a problem. On the day MK Racing will have hubs and inserts to suit most cars.
Either keep a set free or ask Mark to reserve you some. Reports on these tyres on grass is generally very positive so I think you'll be keeping them on for a while
See you Tuesday
Neil