Ultimate Showdown of Ultimate Bravery As A Limited Time Mode?

Apologies if this is the wrong board for this question but, as the topic says, I have to ask:

How hard would it be to program something like the USoUB, as seen at the International Wildcard, as an actual mode in the game?

The automatic buying of items on a preset path and the auto-leveling of skills on whatever path was predetermined seems like it would be a lot to factor in for each Champion...

... But man, would it be fun.