Re-import of exported equipment - Customs - Exim - SEZ

Dear Experts, I am planning to import a capital equipment under EPCG scheme. One of the critical part of the equipment (eg.Motor) is not readily available with the manufacturer. The equipment manufacturer asks us to procure the critical part (Motor) locally and send it to him for fixing in the capital equipment. I am planning to export the part under Sl.No.5 of Customs Notification No.45/2017-Customs dt.30.06.2017 . My question is; 1. Am I correct to export under above Notification? 2. If so, at the time of importing the capital equipment ( will be fitted with the Motor which I am planning to send to the equipment manufacturer ), can I assess the duty for the value of the equipment excluding the value of the Motor? 3. What is any other procedure for seamless clearance at the time of import? Please guide. A.Manoharan