Ah, you knew someone from the gallery would eventually come through, and retroactively assert the existence of an inventory system all along, even though they just pulled it out of their ass just now. But that's fine, you'll take it. Because you really need somewhere to store all your shit, even if it's really stupid and constantly electrocutes you when you try to get it back.
But there is no PANCREAS slot because apparently gallery member manaProgram couldn't even be bothered to google what Operation looked like before submitting this command. But that's fine because we can just jam the arms wherever.
You put the ARMS in the WRITER'S CRAMP and WISHBONE slots.