FIM 2010 CM and FIM CM 2010 R2 in the same Domain and connecting to the same PKI

Hi,

I have a requirement to upgrade my FIM CM setup from FIM 2010 to FIM 2010 R2 SP1. I am not looking for an in place upgrade, instead I would like to have a new parallel setup (new FIM 2010 R2 servers, new SQL 2012 servers), connecting to the same AD and PKI.

Thank You.