I'm presuming Staton's mount is notched to fit over the axles, similar to the GEBE set up?
If it is, these are the basic steps I do to attach the mount to the frame.
There are (2) 5 mm. holes over each axle slot. I attach a 2 1/2" pc. of steel above the axle slot, and drill a 3/8" hole through the steel pieces.
Then you will have to cut the ends off the motor/axle mount.
First you will have to establish the distance between the axle and the bottom of the mount. I have a threaded rod with 4 wingnuts I slip in the axle slot, but first time I simply tied a golf club in that slot, to serve as the "axle".
Then you put the mount over the "psuedo-axle", measure the distance in millimeters, axle to bottom of mount.
Cut the excess, clamp the mount to the steel piece, to drill the 3/8" hole, and whoola, the mount is now part of the bike