Happy to borrow if we decide on a game, obviously would like to have a project to paint some of my own minis, but getting the game in is the most important thing! Don't know much about Ronin, which WP has suggested, but probably have a couple of things (like a ninja?) I could paint up and then borrow the rest (depending on how much there is to go around?). I admit after WP's suggestions I'm quite inspired by the oriental theme, although I accept that might not be everybody's cup of tea.
If we're not able to meet a clear decision, we could always have a skirmish using 3rd ed or Mordheim rules that would enable us to bring small warbands of whatever we want, up to and including Nipponese miniatures... Compromise I know, but could still be fun.