Kickdown switches normally mount at the carburetor. If you're going to insist on not doing it the way the Borg-Warner engineers chose, just push the clutch in while the OD is trying to engage to unload the driveline- - - - -treat the OD like another gear in the transmission.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!