Automate Build and deployment process for teamsite CMS code

Teamsite CMS code and custom code needs to be build and deployed to all environments. Need to plan and migrate current code from teamsite to SVN. Need a plan and integrate the code check-in to SVN from teamsite CMS Build process has to be created for custom code. Code promotion of the package to higher environments and deploy to target locations. We are using Teamsite CMS for our project. Idea is to bring CMS code which is on teamsite to svn repo Whr our UI,services code is there. Need to build CMS code and deploy (continuous integration) To different target environments. So that we have single point of contact for code repository. Instead of maintaining some code(UI, services) in SVN and CMS code in teamsite