Navy, I wouldn't suggest it. You would have to beef up the forward fuselage too much. You'd have to add an actual fire wall as well. The plane is very light and would require quite a bit of work to convert it to glow. There also isn't much room to put a fuel tank in, and if you did, it would be too far forward so it would change your balance point through out the flight. The other thing is that it has a really long nose compared to other fun fly's meaning balancing would be interesting.

Feel free to try it, as it is a good design. I'm an electric guy, but I too thought about what it would be like if converted to glow.

Heres a pic of mine (not done in this picture)

-Paul