Sounds good, you seem to be on the right track! No exp with Autodesk's but pretty sure they use quality solvers, hopefully can converge medium to large flow models like those you plan, dunno. You should be good to go on that front, I'm guessing.
You are correct about the light performance gains. Although still some, the response and experience will/should be at a whole new level. That would be the added value to a retrofit like this (imho).
Step 1: Get a Boxster?!
