Here's the article I mentioned about the different types of Sab's:
bottom line: make sure that they are made in France. Based on the other optional sets and the price range of those knives, I'm guessing that the Sabs on offer are Chinese junk like the rest of them.
Not to be a "knife snob", but I feel like messing with crap is a waste of time: in anything you do, not just knives. Good or, at the minimum, "not bad" tools are important. Very few people (arguably none) really NEED a $1000+ honyaki j-blade or custom, but pretty much everyone, regardless of skill and experience can benefit from 1, half-way decent knife in the 210-240mm range costing around $100... an NO, it doesn't have to be Japanese. I don't know if any of the sets that you mentioned have $100 worth of ebay value, but they will at least get you part of the way there... and that, to me, makes more sense in messing with a set that's just going to frustrate you until you finally give up and buy a better knife anyway.