A walkthrough would be cool too. Maybe you could try writing one that would work with every version:
"Open the chest, it contains a Cure 1 potion in FF2us, a Bomb Fragment in J2e's FF4 translation, a Potion in Easy Type, a Bomb in FF4 Chronicles, and is non-existent in the GBA version..."
On second thought...no.
It's easier if you do the following:
1) Mention only the good stuff you
want to pick up.
2) Skip most of the monotonous story parts because repeating is a waste of space.
I was thinking more along the lines of giving tips to make things bloody easier for you. Point out randomly useful information such as exploitable bugs and/or stuff like that.
I was thinking about FF4A, and thought less of it since there are already Lunar Ruins/Trials specific docs that cover them well.