Migration of BW system to New Hardware and Upgrade to NW04s

Hi,
I'm not sure this is the forum for this post but here goes...
We have recently started a project to migrate our current BW3.5 system to new hardware (HP Superdome) and then upgrade to NetWeaver 2004s.
To do this, we've taken a copy of our current Dev 3.5 system and moved it to the new hardware and will unicode and upgrade to NW04s.  Once this is complete, we plan to install NEW instances of QA and Prod with NW04s.  We will TRANSPORT all our configuration and reload all the providers in QA and Prod.  This will be a MASSIVE task as we have hundreds of infoproviders.  Additionally, I'm concerned we will not pick objects currently in 3.5 Prod system (e.g. custom queries/workbooks, infopkgs, process chains, variables, etc.) but not in current 3.5 Dev system.
My question is this - can we instead take copies of the current QA and Prod (3.5) systems and migrate, unicode, and upgrade in the new Superdome hardware.  Per Basis, this is NOT possible due to the size of the current systems - approx 2.5 Terabytes.  But maybe half of the database is consumed by old PSA's, unused providers, etc.  If we were to clean up our current system and do a database reorg to reduce the database size, is it possible to do a system copy (Dev to Dev, QA to QA, Prod to Prod) --> any help/insight is much appreciated.
Thanks,
Senthil

I had this experience in my previous project and i wanna share a with you. we have migrated our total bw landscape from alfa servers to HP superdome servers.
we took all the copies of all the boxes( dev,QA,PRO) and migrate to superdome and upgrade to NW04. but in your case you are not taking copies QA and PRODUCTION. This is not realistic scenario. you got to move all the objects and configuration from dev to respective systems and load the data in the production.
so you have to take all the copies of all the boxes and migrate to superdome and upgrage to NE04, is the right way of doing.

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