I've been reviewing a number of MP4 film clips that Doug Drexler compiled, and I've been counting the frames of various blinking lights so we can determine the ratio of on/off blinks for each blink cycle (regardless of the speed at which each clip was filmed) - and, not surprisingly, there were several different styles. We can program the LED lights to blink in whichever of the patterns/speeds we decide.But you think 5 amber steady-on lights are right for the 1:350 kit? I'm reworking my custom circuit board for the engines now (with 5 blinking LEDs) so I can easily add a few more blinkers; are you saying 10-12 in total blinkers would be right for that scale?
To answer your question, in the clips, it appears that the 5 steady ambers are there most of the time - with small multi-colored blinkers all over the place. The original lights were the mini-bulbs that plug into a socket (not C7's), so you want to squeeze as many as you have room for into the model. Long story, but we're still trying to count the exact number of bulbs - but I estimate you could have at least a dozen *small* blinkers in each dome, if there's room. Remember, the original domes also had a number of approx 1" mirror fragments glued to the wooden back of the nacelle.
To answer your unasked question - yes, I am quite mad. Mad as a Hatter!