Start by doing a full workload performance test, or you'll likely be posting a similar thread to this afterwards: http://www.sqlservercentral.com/Forums/Topic1781716-3412-1.aspx
Once you've got all the testing done and fixed the queries that showed performance degradations (and there will almost certainly be some), backup-restore will work fine.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability
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