OK This is what i know. FOR SURE.
Phantasy Star Adventure is the TEXT ADVENTURE, and it HAS BEEN TRANSTALTED. in fact, i am playing it right now. it starts out with the lines "I'm an agent from Paseo on the planet Motavia." and it gives you a picture and 5 choices, like those infocom/sierra games.
in fact, there was a (fan-based) pc-remake of it for win95.
Phantasy Star Gaiden is the traditional phantasy star rpg. it HAS BEEN TRANSLATED, by CTC/Magic. i just loaded it up on the trusty past-o-rama to make sure. this one starts out with story line screen, with the words "Long ago, the evil Cablon ravaged the Copto Planet" and then there's like dialogues between some ppl.
i dont know about no kan games tho. are those like separate games from the adv and gaiden? so confusing x_x but i have the roms i am willing to upload/email somewhere. i hope i dont get banned for talking about roms ^_^