Seems like a job done by hand indeed! Interesting!
As you might have seen, I removed the two lists from the JZ group in Yahoo because they were getting outdated again. I think it is sensible to wait for the new year and updated figures in Dutch and German magazines for the pricelist. The economic crisis might have it's influence on the prices.
And for the sparepartlist. I will update the list with the shops mentioned in the threads of the last few months. And Jack might know different sellers of JZ parts.