Tatton Park was a nice place when I visited a few years ago for the
1000 engine rally (I'm in to stationary engines too) but if I were organising something I would have thought somewhere more central to the country would get a better attendance, somewhere off the M1 or M62 perhaps?. Or maybe Pickering showground, they manage to hold one of the biggest and most successfull steam and vintage rallies in the country there in August so it must be a viable location and now has a reasonable exhibition hall too. Greg