Hi Andy-
The one person who admitted a retrofit loves the new lighting in her compound scope - no hotspots and great light. I asked for details on luminosity measurements, and she told me she'd check on Monday.
I'm online now with about three different companies, one of which makes large, complex LED attachments that are prohibitively expensive, but I did find an entrepreneur in Kansas who is using a 3D printer to make new fittings that he's selling on eBay to great reviews. Genius. The only drawback is you have to work with UV protected eyewear, but we were apparently supposed to be doing this with the LED scopes already. Here's the website for the Retro Diode people.
There is also a company in the Netherlands making bulb replacements that don't require rewiring. I've asked about shipping costs, but they are undoubtedly gone for the weekend.
I'm somewhat determined to get rid of the old power supply as mine has begun to make a buzzing sound. Hearing about your fire makes me that much more resolute. -L