AK's FF6 mini hack

this is my first time at hacking, so i thought of trying this.(name removed by djinn's request) ideas i have so far:

the original cast not being replaced:
Terra
Locke
Edgar
Sabin
Celes
& Mog

PCs that are being replaced:
Shadow will be replaced (scrapped swift because he'll look like a modded edgar sprite if i put him in)
Cyan will be replaced by Ike from FE9, FE10(mind if i use your Ike sprites djinn?)
Abilities: axes(rebalanced throw) Ike can't equip espers(i need ideas for how he can use some form of magic)
Gau will be replaced(i have no clue who to replace gau with)
Setzer will be replaced by Vyse from Skies of Arcadia(mind if i use your vyse sprites djinn?)
update:
Strago will be replaced by fft guest character Drake the summoner
edit:
Relm will be replaced by Fina from Skies of Arcadia(need sprites for her as well)

edit: i want Vyse and Fina to learn some form of magic, possibly through relics(like the magic system in Skies of Arcadia with the whole moonstone thing), i know meeple did that for Ginny and Tir in his hack.

I need other ideas for this because i'm new to this
btw my sister thinks this idea sucks and i will be laughed at

edit: any help is much appreciated.