If you need the lights just for open spaces, you can use the body as "light holder" and you can mount the LED´s into it.
There a lot of options concerning that. Like
dpricenator already said, the chinese market has a lot light canisters for the roof in several shapes. For scaling (lights in original positions) you just can DIY on the body. So far i know, Arrma don´t have any light potions.
The lights positions on my BR are just a fake and do not allow to mound something without to weaken the bumper.
The most time I am running offroad, Therefore it makes no sense to mount lights into the body....
Maybe i´ll check for an different Body which will allow to mount lights, but actual it is not so important.
The Controller has also just 3 channels and will also not allow to switch lights on when you like.
In my SC, i have a 4Ch controller and can switch the lights independently from each other.
We will see, Arrma is jung in the market, but their cars are a really not bad and better than a Traxxas out of the box.
Hope you will find something which will fit to you're Kraton!
Regards,
lonee