Hello & welcome to the forum,
I am sure your plans for a Land Rover show will go down very well,
& wish you all the best with it, & certainly hope it can happen.
If you dont mind my thoughts on the possible location of the Loch Lomond area.
I can see where this would be a place that could give lots of interest
& a draw for exibitors & everyone wanting to come to Scotland & Land Rover Enthusiast world wide.
Possibly the area will cause you more problems than advatages tho.
Its allready an extermly popular area, with already high traffic & tourist attractions.
July as the Scottish golf open in the area for example.
You have possibly already identified a site & recieved support from the authorities,
which will be of the greatest importance.
My suggestion would be to possibly look towards Falkirk, & the area of the Falkirk Wheel.
or the Stirling/Trossachs area. Blair Drummond possibly.
The reason being it could be more central for all points Scotland, East,West, North South.
More suitable infrastrucure & suitable locations for a show on a large scale,
which i think your show can well be.
all the best with everything.
george
EDIT PS, sorry i had no idea you were in the Helensburgh area,
Its just when i read the spelling for Loch Lomond on the OP,
my initial thought was 'someone that had never been to the area'.
www.lcsengineering.co.uk