VeMax:
Majortom made a good point
that it is required to mount engine out as far as possible. I put a
26 4 stroke on mine out to the very end of the beam and had to
add a Higley Brass heavy hub to get the cg. As you build other
planes with short noses, it saves a lot of lead if you simply move
engine to the end of mount.
One warning is try not to make hard landings since the landing
gear mount is weak and will rip out easily. (from experience)

Randy