Are you saying you want the In/Justice buffed because it isn't as good as the Aurora Blade but costs more? I think this should instead just make it so that the Aurora Blade costs more than the In/Justice, it is a legendary after all 
Looking purely at the vs. Stone Maul thing - many people prefer blunt weapons over cut for commando. This is why many cut weapons got large buffs this patch. If you are going to balance the In/Justice against them, keep in mind how this will affect their balance with other house crafted 2h swords. I can see the In/Justice getting a buff to balance it out more, but more in the direction of 2-3 cut damage and not in speed. 108 is pretty ridiculous for a high damage cut weapon - just look at the Eastern Katana, 60c/101speed.
Looking purely at the vs. Stone Maul thing - many people prefer blunt weapons over cut for commando. This is why many cut weapons got large buffs this patch. If you are going to balance the In/Justice against them, keep in mind how this will affect their balance with other house crafted 2h swords. I can see the In/Justice getting a buff to balance it out more, but more in the direction of 2-3 cut damage and not in speed. 108 is pretty ridiculous for a high damage cut weapon - just look at the Eastern Katana, 60c/101speed.