Why are you making this thread again? You were answered in your previous one and things have not changed in the last week, probably will not in the next one either.
There is no Beginner-Friendly translation guide because translation in general is not that friendly to beginners and definitely when the system you intend to hack is not emulated, much less emulated with a decent debugger, not yet fully documented in terms of hardware, lacks extensive analysis of common file types, lacks tools to handle assembly, some graphics and compression....
This not to say it is not doable, just that it represents a bleeding edge of ROM hacking and is probably not the place to dip your toe in the water.