I talked to Cream since the beginning of centro's release to do this parts.He refused , so I think he'll never do them.
you can add screws to fix the hinge pins :
(4-40 @ the front , 2-56 @ the rear)
Or fill the holes with this before mounting :
http://www.google.fr/imgres?q=sader+...6kqmjCA&zoom=1