Ratpoison under Xfce4

I want to use Ratpoison as WM but I want the DE goodies from Xfce4. That includes - keyboard layout switching while holding a modifier key, switching back on release * - tray icon support * - notifications - multimedia keys like volume - gtk skinning (* means dealbreaker, others nice to have) Easiest way I guess would be to run Xfce4 as DE replacing the WM with Ratpoison. I have tried and failed getting this to work. Most suggestions mention the use of --replace as an argument to the WM of choice. However, Ratpoison does not come with that feature, at least not what I can find. ratpoison: unrecognized option '--replace' Another way would be to fulfill my requirements above by fitting various hacks into the WM, but that sounds like reinventing the wheel... And frankly I don't know if I'd be able to accomplish it. All hints to fulfill all or some items of my wishlist is +1.