Hi Brian!
This thread indicates Alpine* was responsive to foot pedal inquiries six years ago - perhaps worth a try Pottery Wheel Foot Pedal Stuck To On - Equipment Use and Repair - Ceramic Arts Daily Community
A contributor to this ClayArt thread indicates the motor used in the Alpine requires a different controller than typical modern wheels: clayart - thread 'alpine electric wheels' (potters.org)
*Alpine Kilns | Contact Us