Replacing IMS with Original bearing

[Bala]

Has anyone replaced the IMS with the original part? Sorry if this is a repeat. Searched and couldn't find anything. Going to drop the trans and inspect the IMS, RMS and the clutch and am trying to narrow down my options. Have oil dripping between the engine and the trans.

My dilemma is that even with the LN kit, it's no guarantee there will be no failure. Since the failure rate is not clearly documented - original or LN, I'm thinking the IMS guardian would be a better peace of mind either with original bearing (new) or LN one. But since the LN bearing is ceramic balls would the Guardian really be able to catch it in time. Being a magnetic based monitoring system?

Also if anyone has a cost comparison between the two bearings it would be great to know. Thanks.