Radiator clearance

If it were me, I'd add a little more clearence between the fan and the radiator. If the engine mounts get mushy or break, the engine could shift forward more than a 1/2" easily. Even with good mounts, if you had to make a hard stop or ran the wheels up against a curb or parking bumper, the engine could rock far enough to do the same damage. I like enough clearence to run my fingers in front of the fan bolts or blades....3/4" or so.