FOUND IT!! I knew that I downloaded an indepth how-to regarding repacking the front bearings (see link below), but this may be the same one that you found. In the instructions they tell you how to modify a Ford (I think) hub tool into the hard-to-find Isuzu version. I don't remember reading about re-tapping holes so maybe I should read it again before I go diving into this.
http://www.planetisuzoo.com/articles...Bearing_Repack
I'm with Dub, though. I don't have darn near $800 to spend on a bearing repack/ disc replacment, and I really don't want some shop jockey trying to get my VX in before lunch and forgetting to replace half of the stuff he took out. I've actually never had an issue with any shop I've been to, but I've heard horror stories of mechanics forgetting to put oil pan plugs back in during an oil change. OUCH!!
I say give it a shot.
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong, it usually turns out to be impossible to get at or repair."
-Douglas Adams, Mostly Harmless