Changing initial party at start(2 soldiers and Terra)

Allow me to make a small correction on the portraits. The 3 I listed do not have UNIQUE portraits.

Merchant - reuses soldier portrait
Esper Terra - reuses Terra's portrait
Kefka - reuses Terra's portrait

As you can probably tell, Terra's portrait is the default value. The GBA version has portraits for Esper Terra and Kefka. There is also Amano art for the merchant. If someone wanted to take on the task of turning the merchant art into a useable portrait, I could probably be persuaded to update my patch to include Kefka riding sprites and portraits for all playable characters.

It worked, I was able to get Kefka in as a temporary party member replacing Wedge. Vicks is still there though and everything plays out as normal. Question is, how can I make a patch of this modification so I can share it?