The reason to do an electric conversion would be to try something like this:
About the picture: I came up empty-handed in Tin Eye, and Google Reverse Image Search doesn't present a camera icon I need to click so... I dunno. It's in a folder on my hard drive. If I look at a picture for more than about 20 seconds, it goes to a folder tree on the hard drive. See above for an example.
Your top could engulf the side window and hatch. Maybe styled along the lines of the poop deck on a galleon with reliefs covered in gold leaf? It would look nice against the black.
Edit: I like the example, even though it tapers the wrong way, because of the trolley top. They let in light, and would reduce lift in a crosswind for aerodynamic advantage.