From talking to other Xer's, and especially Bruce, I found that some of the parts on our bikes were also used on certain Japanese bikes. So, it occurred to me that perhaps the stator was as well, since I can see the word "Japan" marked on the rotor. I took some measurements and bugged a lot of eBay folks asking for dimensions of the used stators they had up for auction. I ended up purchasing a stator for a 1990 Yamaha FZR600 for around $40. It has identical OD and ID dimensions to our unit, but is slightly thinner (EH are around 34mm, the Yamaha is about 30mm). When mounted, however, it is still centered in the rotor.
And it works.
I thought since I had 741 apart, now was the time to test my theory. I had to purchase slightly shorter screws to mount the stator with. I had to remove one of the cable retaining brackets from the Yamaha stator, and remove a tiny bit from one of the ribs in the primary cover to mount it. I also had to cut off the crank sensor from the stator harness, and trim the rubber grommet so it would fit our primary (and used silicone as well). I removed the existing 3-pin connector from the stator harness and installed three female spade connectors which could easily connect to the stock regulator (there won't be any weather protection, however).
I ran the bike for a few minutes and it put out a nice solid 13.47 volts. The real test, of course, will be how well it holds up over time. I will run this stator, I've still got the original if it fails. If for some reason the output is too much for the regulator, I've got spares of those as well. I'll keep everyone informed, this may be a good inexpensive alternative to the original EH part. There's lots of Yamaha 600's out there being parted out!