Never mind, it's done - but I blame near had four heart attacks doing it.
I finally got the guide figured out...black thund3r has a marvelous one at xda....BUT....
as I was going through it, a pop-up window NOT listed in the guide came up that told me if I was doing it right the white text "in APX mode" would be flashing; if it wasn't check the drivers. I clicked "No" for not flashing, and expected the program to just close. Unfortunately it kept running - and THAT's where I nearly goofed.
After two hours I knew something was wrong, so like an idiot I turned the tablet off then unplugged from the PC. Turned it back on - powered up fine, but only to a black screen. I panicked, of course, knowing I'd bricked it.

Mercifully that also was not the case - it was still in APX mode. After about 10 minutes passed the intelligent side of my brain said "Wait - if it's still in APX mode, maybe I can fix it by trying the flash progam again. Sure enough, once I flashed it again and hit "Yes" for the question about was the text flashing, I had my tablet back. ..and I was in an unlocked boot loader which is needed for flashing roms. Everything works for the most part....recovery, bootloader etc. And yes, this time I'd made a nand BEFORE I did all this.

BOTTOM LINE - If you play with fire, you may get burned. If you at least read the instructions on the charcoal bag, though, maybe you won't go up in smoke completely.