..also, the AppleScript needs to turn on the Universal Accessibility option!
And to make this even more useful..to apply to situation where remote SSH is not already enabled to Mac, could you make a bootable ISO/DMG that can be downloaded and burned onto a DVD, automatically do the installation, eject and then reboot? You can download Darwin (bootable system) for free. Sounds like a great deal of work, but there are many freeware projects which contain such a feature (typically so you can backup your boot drive) and you could potentially harvest one pre-made and add your script to its startup operation. In this way, one could walk up to a Mac, insert DVD and reboot then open laptop and begin to control it without any physical keyboard/mouse interaction on the target Mac.
The trouble with these requests tho is that they are much more mundane (IT) type tasks compared to excitement of coding system teleport itself. But I think this chore is worthwhile as it can greatly improve the business value of the product.