Enderle Fuel Pump Extension ??

In the case of a standard black solid one piece Enderle 4 inch long pump extension, with a Waterman gear pump hanging on the end (maybe 2 pumps and a dual drive down the road), are there any issues with vibration shaking it loose where it attaches to the cover with the four bolts? I do like the wide RCD base approach, but I'm very limited in room in this case and an RCD won't fit without hacking it up. If the Enderle is fine I'll use it, but if not I'll have to machine a custom one I guess. Observations would be appreciated.

 

drill and use safty wire.dave