I'm about to boot up development of a MW sheet for your game. If you have interest or suggestions for this effort, by all means post them here! First off, I need to know whether the sheet linked below is accurate for the version currently in play (4E?), and if there are parts of it that need expansion/replacement/whatnot to make it conform to how the game is really played. Detailed questions or comments about the layout can wait until I have a prototype up for your perusal, though I'll listen if there's something that you're just dying to get off your chest
Let's get this party started!
L5R 4E Character Sheet