by now all parts are baked and ready for assembly. The only part we couldn't bake is the chamber itself. But Bob said that putting everything together and using the heaters on the chamber to "bake" the whole thing at lower temperature would be ok. So the plan is to assemble everything including an old 8l ion pump and bake the whole thing. As soon as all the insulation, temp sensors and stuff is ready we move the cavity into the (hopefully) clean chamber and replace the 8l pump by the 20l pump currently used on the other chamber.