I've got a used perrin Gauge pod for sale. Asking $40 shipped.. It has a couple small cracks. (see pics below) It is still fully fuctional as it is.. But if the cracks bother you.. I contacted perrin awhile back and they said you can buy just the middle piece for like $20.. On the perrin website these go for $85 plus shipping.. It comes with the mounting screws/washers.. Sold!!