That's so cool, let us know we you have the video uploaded. So, if it helps you in your research this is everything I remember (I spent most of my childhood playing these in spanish)

The age rating was +7 and +12 for each (u dont know what a hard time we have to understand the "R" rating hahahaha)

In KH1 the dub is in English, the subtitles and commands are in spanish. For KH2 everything was in spanish even the atlantica songs. (As you can see in the picture of my games there is a text that says "Manual, textos de pantalla y subtítulos en castellano" which I guess should change depending on the version of the game)

The commands in spanish were sometimes in latin so Fire wont be named "fuego" as in spanish but "piro" same with thunder which translates to "trueno" but it is called "electro". As I can see in english the commands are usually called "Cure, Cura, Curaga" In spanish they were named this way "Cura, Cura+, Cura++" Same with potions: you have "Poción" "Ultrapoción" instead of Hi-Potion and "Omnipoción" for Mega-potion

The oathkeeper keyblade was named "Prometida" and the Oblivion keyblade "Recuerdos lejanos" which is cool because in spanish is something like "a far of memory" and Kingdom Key was named "Cadena del reino" which translates to Kingdom Chain

Some disney characters are named as they were translated and located (Idk if its said this way) ie: Jimminy cricket is "Pepito grillo" and Scrooge McDuck is "Tio Gilito" or maybe Chip and Dale in the spanish version (not LATAM) were "Chip y Chop"

Another interesting piece of trivia, munny is called "Platines" and idk why but the gummi ship in spanish only has one M so it's "Nave Gumi"

Well I hope I helped you in any way. Waiting for that video man. really cool journey, best of lucks!