As said i would work on such a project if given some early tips on how to begin and if the source code is accessible. As you said you already have contact with people to get Discworld 1 and 2 sources i thought it would be easier to ask if you already had talked about Noir code/etc.

In http://wiki.scummvm.org/index.php/Discworld you mention Discworld 1 and 2 source code may be delivered to you, any possibility you can get Discworld Noir code also? I'd like to help in coding such an engine if possible.