You have to get M3 and M5
SB to get early vortex. If you do not get early vortex, you can grab it on M12. If you have good ranks you can make all these buys without any extra item pickups, you have roughly 450 extra Orbs on M8 and 4K extra Orbs By M12. So you can buy Extra Items like Untouchable on M15 and M17 and still have 2K left over if you have a good orb route. If you have a bad or uncomfortable orb route, you can still pickup the Untouchable on M12/13. This route is to help gear you towards the Advanced Any% Route due to the strats and buys being very identical. Good Luck!