If you need standoffs that are more than 1" long, avoid any kind of straight posts. Torque will induce more vibration than you want.
What I do is to cut strips of 3/16 or 1/4 birch ply (Midwest). Stack the strips two vertical, two horizontal, two vertical, etc... Use CA to join them. This provides rigidity to prevent any twist from the engine but is much lighter than a solid wood standoff.
Difficult to explain, so I popped downstairs and took a picture
