Simplest way is just a code for your character, it'd be easy to hack this way, but it may be one of the only options. As long as it's encrypted by a unique effect not accessible by the masses, then this could easily work.
If you can get the saving down it'd be easy, but it seems like the main way I can see this saving is through a code, but an alternate method may be to save something obscure and unused within the game itself.
What about config, that might be able to be used
configSet?
configGetByID? Actually that confuses me and probably wont work, it's void?
Simply set a code in there, which I believe you can do in the triggers, as other console commands have been used in triggers (unitTransform for instance).
[This message has been edited by L33TSkillz (edited 06-29-2010 @ 02:43 PM).]