any Rotation scripts?

hello, heehaw again with soem crazy crazy plan. I need help, im looking for a rotations cript that i can change direction of rotation and speed. okay yeah that kind of scirpt is free and basic. Heres the complicated part- - it needs to allso haev a seperate primitive station that has buttons that can
1.start
2.stop



this is for a ferris wheel so im going to need it to not reset when it stops.....

any help woudl be appreciated, Im real real real real sorry i dont have much money to pay anyone for stuff but i can pay you in leaps of joy O.o

There is a rotation script in every avatars inventory Library/Scripts/rotation

yeah i know but not one that has controlls that allows start stop adn chagne ing of its speed