It can eighter be an adaptor which fits on the kickstart shaft ( might be less work ) or a complete unit which will go where the kickstart unit goed inside the casing!
Mario surely by the time you have added these parts to your race bike you will have lost any weight savings you had gained by removing the kick starter and cost yourself a lot of money.
I cant see how it would work any way without some serious design work, your kick start shaft does about half a turn and stops, a cordless drill doesnt!
As fonty stated all the 2t teams just bump start the bikes its only high compression four strokes which need assistance and they normally use something to spin the back wheel to bump start the engine.