Am I the only schmuck that's not dexless?

The difference between Chaos's level 130/140 sets and what we're already capable of scrolling is far too insignificant to worry about. It would take a lot of time and funding (primarily because the 140 stuff is from Empress) to be better with the DEX equips. As for the changed accuracy formula later, it's been stated (not entirely confirmed I'd assume) that it will be -2% per level below the monster. In addition, STR adds to accuracy later as well. You'll want to find a reliable source on both of those statements though, as I'm still taking it with a grain of salt.