I'm on the hunt for either an engine or motor for my Skyward 25. The book recomends a .25 2 stroke glow, but I will eventually be flying with floats, so I was wondering if I should go bigger. Here's what I'm looking at for glow engines:
OS .25LA
OS .25AX
OS .35AX

I'm also considering going electric for this plane, but don't really have to clues when it comes to motor ratings and speed controller ratings. I'm looking at the Gens ACE Mars Brushless combo kits from HobbyPartz, but I have no idea what I'm looking for.

I'm not new to glow engines, but the thought of not having to deal with the mess and noise of glow sounds kind of nice to me. Please feel free to suggest what kind of brushless motor/esc/battery combo would probably suit me best.

Cheers!