A bit of tentative success. I wanted to wait for new nuts (arrived yesterday) and spring (arrived this morning) to tackle the whole. Under the threat of impending rain, I got it all put together and buttoned up when the first sprinkles arrived. She started right up and I was able to drive it a little bit before the rain really started coming down. I'll do my test runs between rain showers, but had to say thank you to you all.
The lathing did its' job well. It's odd, I know, but that 1mm made a big enough difference for proper fitment. From what I have been reading around the forum, this scoot isn't the only one Kymco has been 'adjusting' in later production runs.
Och well, all good for now. I'll continue progress reports over in the Like 50 section.