Loom for piaggio zip 125 engine 2001

Hi all back again got zip 125 engine 2001. loom I found when put part number in state 2002 would this fit as also found out they did three different engines would any other loom fit ie fly 125 et4 been told same loom but seller state need cdi with immobiliser and key and want 80 just for that without loom or can I just buy a cdi without immobiliser.i know there a few questions in post but dont want to throw away money on wrong parts from sellers with no refund
Any help greatly appreciated
THANKS