I have a script program almost complete to do that, it actually check the mempool if there is a TX it extract the public key, send it to my keyhunt server retrieve the private key and the last part is  still  not complete, just need to make the TX i already have some script for that I just need to put all together, if you wait me i can finish it tomorrow and test it with a smaller TX. Send me a email or telegram i can show you that tomorrow.