Fress I've talked to blocker and he would like to do something in relation to sponsoring an award or two to the all Holden day in regards to panels vans and especially sandman's . If you could pm him a contact with the AHD committe or sent him the official sponsonship details he will get in contact with them directly and sort it out and off course liase with yourself

In regard to all van groups and friends getting together we need a name like you have surgested that is not related to one partical van club that we can enter under although possibly change club for group and therefore not claiming to be a club as such
We did get a reasonable group last year by entering under my sandman.com banner
My surgestions would be
All Holden van group,which show it a group for the all holden day partically
all Holden vanners ,simpler to above
Holden vanners
Holden van inn
All Holden van inn
Four seasons van group
Or , Four season vanners
On rereading my post I partially like All Holden vanners or the all Holden van inn .
You would not necessarily have to have van to enter to this area so maybe
All Holden van inn and friends or all Holden vanners and friends

Knowing someone on the committe would definitely be of assistance