1 PC for every single client on the same network isn't going to result in a different IP for every account.
Your pc's will have the same public IP adress.
Pay for supporter rank (10$ will let you use 10 accounts at once and get you 1000 hours of botting).
Open the client and start a new instance for every account you want to run a bot on.
IT SAYS THIS ABOVE THE SHOUTBOX:
THE OSRS UPDATE BROKE THE CLIENT FOR OSRS BOTS THAT INTERACT WITH ITEMS. PLEASE WAIT PATIENTLY UNTIL WE FIX THE CLIENT.
There is a BIG RED MESSAGE above the shoutbox that says:
THE OSRS UPDATE BROKE THE CLIENT FOR OSRS BOTS THAT INTERACT WITH ITEMS. PLEASE WAIT PATIENTLY UNTIL WE FIX THE CLIENT.