Auction House: Expanded-Workable

The only thing stopping me there is knowledge. Opcodes vs event commands. What tells it to treat as one or the other?

As far as doing it with event commands, not a clue how to make it count or where to count. Maybe setting temp bits as needed but again with the checking, not sure if it would be faster. As far as using opcodes... how does it know that I want to inc and not a conditional branch?

Also wondered if possible to just compare a value to total gold instead of checking the bit but I dont know what holds that value, calling it in events nor well pretty much anything reguarding it.