You probably don't need Loremaster or Barter for Lone Wolf. The extra cash you get from having a bunch of items you can't use means you will have plenty of gold after you overcome the Fort Joy area. I ended Act 1 with 15,000ish.
That means you can put Persuasion on one character, and Thievery on the other. You can also splash a few points of Sneak or Telekinesis if you enjoy those skills.
