I can appreciate the desire to keep the vehicles and those with them in period uniforms in order to make for a better viewing and photographic experience , but perhaps something like a general military style coverall would be OK ? Since a number of MV owners either never served and feel uncomfortable wearing such or as said earlier feel it would not be correct as they are too senior As for those with HMV's , how will they be shielded at their vehicles against rain and sun ? since you ask that they be on hand to answer questions and speak about their vehicles ? Would they be allowed a Jerry can or ammo crate to rest themselves on ? What of the reenactors will they be allowed rain gear or do they get wet also?
Lastly while a static Vehicle is ok , its really nice to be able to hear it running and even better if its able to be seen moving , a number of HMV owners dont like to go to a show simply to park it for the entire event , they like to show a bit of all the hard work they did to make a working vehicle, would they be allowed to do that at the Tankfest ?