After reading that, I think it may be easier to just dub my VHS copies onto DVD-Rs, which I already have the tools and experience to do.
Sad too, because I remembered another movie that I think needs a fix: Bakshi's LOTR, in which the ending narration was changed. The new narration sounds just totally misdelivered and wrong, whereas the original "so ends the first part of the War of the Ring" was spot-on.