So I got responses from both sellers. The first, richview8i8, said the dials were "fair" quality. In looking at them compared with the analysis at DRSD and what I can get with Ruby's Watch for a similar price, it doesn't seem worth it.
On the other hand, caucacon, said the dials were from Vietnam - best quality. For $99, it seems like a reasonable risk to buy one. The layout looks decent enough as a Mark IV 1680 but at $99 it's a good price for a Vietnamese dial - even a good price for a Yuki dial - all of which is better than a stock Cartel. I will let you all know how the quality is once I get it (if I get it...haha, knock on wood).
And don't worry - there was never a doubt the dials were rep dials. I was just trying to figure out what quality rep dial they were.