Ive seen that motor in a 3D Foamy extra. It flew very well, plenty of power,, What I like the most about the Axi's is they are so quiet. The mount I saw was just a 3/32"ply circle mounted like a firewall, recessed back just the right distance so that the setup looks right. Just layout slots in the foam for the circle mount, clear out the foan thats in the way of the motor and glue it in while assembling the ribs to the fuselage. The shockflyer webpage used to have a diagram of how to lay it out. It was a little different for the shocky but the same basic principle. It worked really well in the 3D Foamy I saw because of the horizontal foam ribs that run the length of the fuselage that create a + to install the motor mount into. Id ask Mr. 3D Foamy he may have some plans on how to do it also.