So you'd like to change the default UMMORPG characters with the supplementary ones?
I've changed the default UMMORPG characters before, so I have experience in that.
I've added my own items and equipped them to the models too, so that I can do.
If you have different animations I can assign those too.
I'm a Unity programmer so any code required to read or write to get this working properly with your package won't be a problem either.
It all depends on the equipment right now. Are they designed for the character models? If not, I can still equip them and try my best to make them fit - but there's a very high chance they're going to stick out of the model somewhere.
If your equipment comes with the package then that would be even better.
Anyway, I should be able to assist you - please private message more details of what you need.
Kind regards,
Michael Joubert.