If it's a good deal don't even sweat it. I'm all for bigger skis but 184 is still respectable. Still long enough to provide good stability. You might enjoy the extra maneuverability in technical spots if you're used to longer skis. It's not really a bad compromise.
I’m much shorter than you, riding long skis and I’m fine. You will love 184 poachers, they’re the actual right length for you, and poachers ski true to size due to their stiffness.