NKK IS15BAFP4CF LCD Button (Library Needed)

Need a bit of help with this one. I have come in to a box of these display buttons and am trying to write a driver for them. I have all the documentation and some PIC code. Need some help or pointers to basically take the PIC code and turn it in to an Arduino library. Let me put together a github repository and post it here.

Here is the link for the github repository:

Is anyone willing to help with this? I know I’m asking a lot here and any help would be appreciated.