I used the "grain of wheat" bulbs that came with the package deal that included the trawler. I should have known better. Perhaps back then the LEDs might not have been small enough for the fixtures. Can't remember. Anyway, I never used the lights except for the initial test. So my plans are to toss the "C" cells idea, and switch the NImh battery with a li-ion pack thus saving weight and devote the weight reduction to ballast low in the hold.
Attached are some of the "night" photos with the lights on.
Lew

Are the lights LED or bulbs? Either way, you could save some aggregation of removing the alkaline battery pack and replace the connection to your bec on the receiver. A resistor may be needed but that can be determined.

Your conversion is similar to what I have had to do with the kits given to me. Not impossible to achieve, it just takes some imagination, research , and patience.

Ron

Looks like a good save. Nice work
Modding older models can be a headache at times, but you seem to have found a great solution ..👍

I started taking things apart on my trawler to get to the inside. This is a very short video showing some of the prep work to get at the inside of the hull. You can also see some of the extra details that I added.

Lew

Thank you Lew!
It was what I was expecting and you did a super job. I like this balanced rudder layout a lot, because it us inherently robust and tough.
👍😊