M960 (I think, it's printed really small!) XTR rear mech, in top notch condition bar a few cosmetic marks, and a scrape where the adjuster screw fits. Just noticed the adjuster screw's not actually there though! I probably have one in the spares box, I'll have a look in the morning...
Bought off here and never fitted (change of build). Should say it's bottom-normal, apparently that can save you vital tenths of seconds, but I like my pies too much to worry about sort of thing...
Fancied trying SRAM for a while, so sounds like a plan if you're keen?
Can swap photos tomorrow if you like (I'm not too worried!).