- Mr. Fixit is fine, but the only reason that it isn't in the game is that it never worked, so they removed it, and it probably will be fixed and implemented anyway, I hope at least.
-Tag! is fine. I don't see anything that would be really unbalanced from that, it wouldn't really help a crafting alt that much, and that is the only alt I could see it being really "abused" in.
-Master Trader's original 25% discount was too much for a multi-player game, so of course it was deleted, but a 5% wouldn't be that much. The prolbem still would be alts, of course.
-Fortune Finder could work in many random encounters where the NPC has caps on death. Game mechanics might have to change, but I remember that certain encounters like Homesteaders already have a changing number of caps on them on death, so it could be implemented without too much hassle, I hope.