We are still waiting on the bottom flanges being machined. I went to the physics machine shop this morning and they have only just got them on to a machine, which is a bit annoying since they've been there for quite a while now. They should be ready in one week.
I'm going to speak to Bob about getting them cleaned and baked. I know that we're not aiming for some super-high-vacuum system but we probably also don't want machining fluid ending up on the optics when we pump this thing down.