By all means reinforce the cowling or it will severely crack. I ruffed up the interior with some sandpaper. Get some light glass cloth, the LHS should have some, and lay some pieces inside. Take some 30 minute epoxy and thin it down with some alchohol. Brush the resin of the glass and let it cure. That's the way I do it. I'm sure that there are other better ways.

As for me the Saito 91 does stick out of the cowling. The valve covers and glow plug are easily reached. With a two stroke I think you would need to make a hole in the cowling for the ingiter. I would not use the remote glow igniter because you would have to take the cowling off to get to the glow plug.

<-----------------------Avitar

I also added flying wires on the tail after reading about the flight failures. It was easy to do and it helped balance the plane with that 91 on the front.

By all means be very careful when flying it for the first little while. It has a nasty tip stall that will get you that other planes do not have. Keep your airspeed up and watch the elevator input.