Hello all, we have a customer with this 90 degree wedding cake corner step, unfortunately have no information regarding the original builder or pool components manufacturer. The step measures 4'9" along each wall, which would make the face of the step approximately 6' 8&1/2" (if the face was straight). I am trying to identify the manufacturer so we can provide the specs to Loop Loc for liner order. Anyone have an idea of the manufacturer? Images attached. Thanks!