I got to far into the repaint to put lights into this one. However, there looks to be a lot of space inside the main forward cockpit area. You could fit Double A's or even Triple A's in there. The hardest part is that the fuselage is glued VERY well.. and I didn't want to damage it after painting it to pry it apart.
However, if this one sells well, then I'll do the next one with LEDs for sure.