According to Steve Holes weekly blog, part of site is being used as a vaccination centre so that could make things a bit complicated .
But maybe late August bank holiday weekend could be a possibility?
I know Silverstone Auctions and Classic Car Auctions have been using the main exhibition halls to store cars and run their online auctions events. That was the case last year, they appeared to have block booked it for longer term. Not sure what the arrangements are going forward.