On hand load Conversion

Hi All,

I have the below approaches, request your comments or guide me with best practice. Thanks.

Option1: Load On hand Quantity with zero Cost and add costs later with effective date

Option2: Load Item costs first and then proceed on-hand quantities during cut over time (considering the black out window, first task/part can be completed well in advance and later on-hand can be performed during black out window)

Regards,

Jai