Ken,
Tom Morris has a complete front mount with side bearers for large and smaller motors. His mount ring is secured to the hardwood beam mounts with screws as well as glue. This is the most secure way of doing front mount as glue alone has been know to fail. I have done something similar on my Stuka using small screws through the plywood doubler to keep the mount ring from twisting and working lose.
Best, DennisT