Keyclone would just need your original email address, to rebind it to your current system.
You can infinitely transfer it, the license is good forever.



You'll get more boxing assistance from HKN than AHK, and those are your basic free options.
Quite a few users use HKN as their boxing solution.

You can go with the basic script.
There are tutorials in the forums on the HKN site.
Khatovar has a link to her site, with a lot of HKN information, in her signature.



I'd still recommend IS Boxer.
The subscription fee is minimal, compared to the cost of boxing most games.