Mosey,
Thanks for the update and the ER25 collet source. I wonder if a previous owner of your machine didn't replace the spindle at one point, changing it over to the MT2 spindle from an 8520??
As for the 8530, I would much rather have found one of them, but they seem to be even harder to find than the 8520's. The one that I bought was less than 150 miles from home, which is pretty close as far as I'm concerned. Heck, I drove 400 miles for a Keller 5HD power hacksaw last year, but then again it was a freebie, only cost was fuel and time.
The mill I bought has a 220V single phase motor on it, which will work just fine for the time being, but I plan to round up a 3 phase motor and a VFD for it. I plan to do the same with my Logan lathe, but those mods will wait for the time being. I can see where the ER25 collets and chuck will be a more worthwhile upgrade to pursue first.
Now I just have to wait for Saturday so I can get my eyes and fingers on it. . . . . . . . . . . . . . . . . . . . . . . .
Gosh, this waiting is getting boring. . . . . . . . . . .
Oh, shoot, I suppose I could wait offline!!