Megane ecu swap

[bill field]

I intend to buy an ecu kit for a 2007 megane 1.6 petrol convertible. Can someone tell me please what parts i need to change as some are selling just the engine ecu bcm and key card and others are selling the kit with the speedo clocks,stering column ,Are these coded to the immobiliser ?
Many thanks Bill

[Catalizator]

need ecm, uch, keycard and escl

[bill field]

Thanks but what is the nid ??

[Catalizator]

Thanks but what is the nid ??

google translate :)