The original 3ds I used was a New 3ds, which is why it's like that. It's also going on a new 3ds. I don't know what OFW is, or at least not the acronym.
So just those two will do it?
OFW = Original Firmware (or Vanilla (don't know how that name came to be but yea lol))
Yes, dragging just those two will do it (assuming you have Homebrew already setup on the target system)