IDX real estate system

We want to work with a programming specialist in IDL/IDX RETS. To develop a system using preferable open source systems ([login to view URL]) ([login to view URL]) for importing listings from Canadian MLS using back to our software, In future would like mapping routines for other USA based MLS systems. We are php developers and have existing real estate software. Do not apply if you have not worked with IDX/IDL RETS and real estate. Once we pick programmer we will discuss in more detail the quoted price.