Does the Unreal Engine allow for normal maps to add extra detail that you don't want to spent on poly count? Could try that maybe.
These could pass for photos soon!
I use normal maps, yes, and it does help things look like they have more geometry than they actually do.
Here's the last shot before I start work on the transporter room. It features the "Warning" board with grey thingamajig, the "Warning: High Voltage" panel that has been used for a few different purposes throughout the series, and the infamous "flowerpot".
As for the corridor details that are not complete, I will come back to them. Most notably the Jefferies tube, "doorbell" buttons, and the door signage.