Ok, her goes:
high ratio hubs, underbelly high speed pto, pto driven werner f56 or f64 winch (which ever we choose to put on, f64 has a 7 tonne pull rate, f56 has a 71/2 tonne
LIFT rate, variable pull, autofeed, fully remote control, 300 feet of rope etc...) werner winch blade (demountable blade, legal requirement in germany) , rear linkage, front and rear pto, full cascade gearbox, hiab crane (forget which model) only 270 degree rotation though, the constant rotation is very nice

webasto heater, Michelin XM47's . crew cab, although that depends on your requirements on whether thats an advantage or not

but that is what makes ours so unusual, the fact that its a crew cab with all that gear on, take a look around some of the forums (such as benzworld) and theyve put a link to the youtube video, and people are amazed at how much kit is on it. oh, and we also have a pickup hitch, but we've never actually bothered with fitting it.
it does need some work doing on the cab

I have to say, what i like most is actually the 4 spool proportional valve with joystick, we were thinking of doing something like this on the 406 120 with switches instead, but might talk to dad about the joystick, although we'd only ever use it for lifting and lowering a flail on the black mog so is it really worth it for us?