so to my calculation you don,t can reach 1mm at 1km with a 1sec instrument maybe with a wild t3 or kern dkm3 or leica tca2003 but its not that simple to get that accuracy at that distance.
plus I cannot give you a price because I only help her to sell
she wants to sell the whole lot at once but try to contact here maybe she wants to sell
here is here email Noelene Lafferty
lot a succes