I'd be interested in helping with a l5r 4th edition if you need some help. I am only learning how to build a system with d6 at the moment but I am willing to help with this as I would like to have l5r in my hl as well.
btw I have more than 10 years in IT development, and while it helps I still need to learn the way they have done things.
Being into XML is also an advantage.