Well yes, you have the character modifier code for reminisce so you can use npc's like kuhn and alkaid. Then in the redemption thread you have the form modifier to change haseos form which u can convert to reminisce but yes you'll find all the codes you need between the threads so you should have no problem doin what you want to do.
Actually, there is. I have no clue on how to convert codes for one game to a different one. I only know how to convert codes for different cheat devices...I also beta Rebirth, so I just have to do post game stuff until I star Vol. 2.