Actually , this has 200k on it , so its not really low km , but i do have another one here genuine low km , that i stuck new gears into ( the plastic wheel was broken and stuck to the master gear ) and its not been wound back like your incinuating , although by the looks of the gear setup , it wouldnt be too hard to do it.
Looking at ebay prices , the cop spec go for over $100 , so i guess the one i have that is repaired would have to be worth $75.
P.s the cop spec wasnt repaired , so km are untouched , unfixed km
Its not what you know or who you know , its how well you can fake it