(Jordan V., Travis S., Gerardo M.)
The turbo pump and SS-500 cart are off now, since HAM7 ion pump is able to maintain the chamber's vacuum pressure, and the ion pump continues to pump down the chamber, see atached plot.  So, we decided to introduce the HAM7 volume to the main vacuum envelope at the corner station.  The filter cavity tube also is part of the main vacuum envelope.
We only need to move the vacuum equipment near HAM7; SS-500 cart, two CUBE aux carts and flex hoses. The SS-500 still cabled to the turbo pump since it needs to spun down.