Dear Sir I am looking for a company to design for me a I bean or other system with a battery operated trolly the reason is we will have amost a lenth of 1000 metters in lenth. The project will be a straing line of I bean trolley or other system that is economic to make a small horse gallope, the trolley will carry a gate to separate the horse that will be walking and or galloping will send you here what we are looking for, a type of battery operated trolley to carry the gate and that can have speed from 6 miles per hour to 15 or 11 miles per hour , that can go for 1 meters and than return again for another 1000 meters . Please see the photos . I would like to know if you can build one and if possible to use Battery BECAUSE IS OUTSIDE electricity could be dangerous also it rains a lot in Florida we have the training in Ocala florida . Please let me know if you can do something like that . Kind regards Antonio Show More