You'll be lucky to find a light lens. Like hens teeth. Mark, (meadowfield), does decals that you can fix to a piece of clear plastic.
As to those instructions for clutch adjustment, I would say they are for something else.
They don't plough like a single furrow plough, Chris. They cut through already tilled soil and push it up in ridges as the potato plant tops start to show. Being painted wont affect the result.
The match had a good write up in the Cumberland News yesterday. Some photo's, but none horticultural. We got favourable comments though. Seems we created a lot of interest with spectators and ploughmen, showing what our little machines can do. Looks like a horticultural section will be a permanent fixture.
Many thanks to you Scots lads for attending. Couldn't have done it without you.