Hi, firstly I'm sorry to reply you that because of Game Plugin Development is not my major job, and plugin development is on going when I'm free in my works. I think if you have skill of javascript development, customizing graphics interfaces are very rapid and 1 week is enough, but from my suggestion, the objective is more important than customizing. I can provide my support when I have time, you can do as following steps:
- Define the goal of your game ( Subjective ) and create plan to estimate how many workload that you'll do
- Put 1 or 2 persons into plugin training ( may be take 1 weeks )
- Then I think your objective will be finished less than 2 weeks ( Not include the whole game development )
Plugin is extension for RPG Maker, I suggest to extract more and more reusable features so that you can saving time in your game development. If you do like this, you can do anything in your own defined games.
Regards, Lang