Locockpit setuptable issue.

Hi,

I have to load 3yrs data for these data source 2lis_02_HDR,ACC,ITM . but user is not agreeing the down time for loading the these datasource to bw system. i gone through some of documents like first load init without data transfer and followed by full repair load and deltas going to delta queue . shaill i go head in this procedure is there .Can any one suggest me on this issue.

Regards

RK