Need help making new FW for Acer 722 (Mediatek 8183)

I am new to all of this and found that this might be the right place to post. I need instructions on how to build a new firmware for the Acer 722. The code name of it is willow and i cannot really find anything on it.

If their is a guide already out there and i can follow, please do post but i want to mainly get help from here. I have dev mode enabled and debug options enabled.

Which firmware? ChromeOS? MrChromebox full rom?

ARM is currently not supported. Work is in alpha state