Thank you guys. The circuit board is mostly for the propulsion in the back.
I am actually looking at several things for this most amazing little model kit. First, Paragraphix has two photoetched kits that are out for Galactica now. One has the nameplate, more accurate guns, ribs for inside detailing on the landing bays, etc. The second, just released, is for the inner detail where the landing bays go during Faster than Light Jumps.
For lighting, Galactica has red spot lights for the inner detailed area just spoken of (around 8 or 10), port hole lighting in the front section, lighting on the "GALACTICA" name plate and lights coming off of the front antennae area.
I will be working on the model in the next few weeks and will be happy to post progress pics......