Mechanic for Small Engine Modification

Must be experience and understand how to modify the ignition control module on 4 stroke-engine to prevent secondary spark. I have a small 4 stroke engine that needs to be modified to prevent the secondary waste spark from occurring. The mechanic must understand how to add and use a Hall Effect Sensor, a Cam Sensor or Magnetic Crank Sensor along with a CDI unit and ignition control unit to prevent a secondary ignition on a small engine. Please feel free to contact me, send me your phone number or/and email if you are able to make this type of modification on a small engine (200 cc to 1 liter engine size) similarly to what is found on larger engines. This is temporary/part time work that could lead to more permanent work in the future.