Deploy Report Model on Server without SQL Server 2008 BIDS

Hi,

I have developed a report model in BIDS Sql Server 2008 as per requirement but its need to be deployed on WindowsServer2008 R2 which have SQL Server 2012 installed so I can't open that report model solution there for deployment when I tried the conversion wizard starts which corrupts the solution because Report Model are not supported in SQL Server Data Tools.

Therefore I have tried the workaround as per link below; to copy the XML code data source and paste it in the bottom of XML code of Report Model so I can upload the smdl file but its not letting me doing this and complains about the table/views I have used in Model are missing.

https://social.technet.microsoft.com/Forums/sqlserver/en-US/3eccb01f-71c8-4aa6-9716-ee695bdb7422/report-model-to-have-multiple-data-sources?forum=sqlreportingservices

Can someone please advise how I can deploy this report model on the server which doesn't have SQL Server 2008 installed?

Thanks,