Moving XI3.0 to PI 7.0

Hi SDNer's,

Can anyone tell me what are the steps to migrate XI3.0 to PI7.0. I have seen some documents from the SAP marketplace and its useful too. But if anyone achived it and share his experience will be appriciated

Like basic requirement for Migration from XI 3.0 to PI7.

Advantages of doing this, Reliability, Stability and Complexity while migration?

Also what are the things that we must have to import in PI 7.0 and what are others that we cannot and has to handle in PI7 itself?

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Points will be rewarded for the best answers<b>:)</b>

Thanks & Regards,</b>

Farooq Farooqui