Cool...another .26 user!! I have flown twins with .26 and .91 4 strokes both turning the normal direction...there are no problems operating them that way.

If you do get a reversed rotaton engine, you would have to use a pusher prop on it, and they are very very limited in selection.

In the absence of a real compelling reason to have them turn in opposite directions, it is simpler, easier, and cheaper to use two off-the-shelf engines turning the same direction....