Well I am willing to stump up for the initial cost of the plaques, and quite like the idea of the first 10 being gold, followed by silver for the rest - that seems to be fairly easy in terms of cost etc.
HAYNES ROADSTER
Design by Chris Gibbs & Martin Keenan
Build number 001
On a plaque about 2" by 1" unless bigger is better? Already found a potential supplier.