Parts are now cleaned and ready to bake.  I've put them in a UHV foil lined box with a TX1010 wipe in the bottom to stop scratching. Its a very small vacuum can so I'm baking the two tubes first and will do the end caps and misc parts in the next cycle.  I started a bake cycle at 7:45 pm for just the shields and will let it go for a few hours at 100 C.

This time I wrapped the vacuum can initially in copper foil, then the heater strap followed by a generous amount of food grade aluminum foil.  Its heating up much faster in this configuration.  I wasn't sure how the cloth wipes would fair under baking so the shields were very gently placed directly on an aluminum lining inside the can.  

Pictures attached.