I've seen the memo, I can't remember where. I think it was from Roddenberry to Justman asking how much it would cost to add the lights to the trench. I think it was around $300 back then and the money was not available.
Somewhere? There aren't that many places production memos have been printed.
Yah, I know.
I'll try and find it. I seem to remember it was in the last few years. It might have been in one of the R2/Enterprise articles Gary Kerr wrote for Sci-Fi and Fantasy. I'll check.