Just throwing it in. The Aurora stuff is really colorful. You owe it to yourself to hear it if colour is the main thing driving your question. Geoff Tanner the designer is also an early Neve designer..Ask him if you want the goods. For the closest 73 Ive heard has to be the original Brent Averill unit (not BAE) The first full width rack 1073. All Neve chosen components. The Rupert Neve Shelford Channels are nice and no its not a 73 but a greatest hits channel. The Port II are great too.
I own all these above.

My two cents. Check out Geoff if you haven't yet.