Question 1. Yes, you can add files to MDT to allow you to use your images located on your WDS server. read the help files that comes with MDT, it will tell you how to do this. Question 2. No, the Driver injection that is done by WDS is a closed system, MDT supports driver injection during you installation sequence, so you can use that instead of WDS for drivers. It looks like what you want to do would all be feasible with MDT, I do the exact same thing with our server build now, (base WIM un touched except for patch injection) then the sequence runs and installs and the configures the server.