Items seem like they'd be the hardest bit to tackle. Thankfully GameFAQs does have a list of shop items, but it seems like it'd be a super tedious thing to work through, since there's so many. Skills have actually been much easier for me to understand and differentiate, while items are still just "type and numbers" to me.
Monster skills (and their randomized names), however... Not nearly as pleasant. I think if you can, you should try to figure if you can partially translate the Monster Training feature as an in-between, at least to make it easier to rename and clarify monsters, since it might be a lot harder to really do how they randomize things. Unless if they have like a secret list in the game data that has all of the names it chooses from? Cause that'd be useful and convenient. I know NIS(A) tends to have a list specifically for titles and the sort in Disgaea games at least, cause it's completely possible to pull an Etna in 2 and hack the game to change it, far as I've read.