Yes it is definitely possible to do as an electric. Although it isn't necessarily my thing there are some powerful electric motors and batteries on the market now. Electric performance can be outstanding.

As for a 4-stroke, I prefer the OS engines above the others. I know some people will argue that and talk about weight, power, etc. That's all fine and dandy but I will still disagree. The OS alpha series 4-strokes (.81FS-a, 1.10FS-a, 1.55FS-a, etc.) are the absolute best I have ever owned or seen for all around ease of use, reliability, performance and cleanliness. The only drawback is the cost. Of course the cost of all engines is going up lately unfortunately.

Have you considered a gasoline engine? A 20cc-30cc 2-stroke gas engine would be nice on a plane like that. It won't sound as cool as the glow 4-stroke but they are relatively inexpensive and gasoline is much cheaper than glow fuel.<br type="_moz" />