Bill, have you worked for NASA in the last few years? I understand they also have a slight measurement problem too. something to do with standard vs metric......
I can't wait until you post more, new pictures with updates on your site.
How much trouble do you think those new, conveyor treads will be for getting around?
Is there room to drill 2 holes in each tread (ya, I know, lot of work there) and screw on a small, square steel bar for added traction?