RE: Keeping your pilot in place.
If you're going to cement it in, make sure there are some holes on the bottom. They allow the cement to ooze up the hole before curing. That makes virtual glue rivets. Light and easy.
Most pilot figures are lightweight. Anything that secures them with mechanical advantage will work decently. And you shouldn't need much of whatever it is. For example, one screw ought to be plenty. Depends on the weight of the pilot.