The HFT support structure ISD together with the IST was assembly during the week of August 5.
Several of the steps had never been done before including inserting the MSC with th IST mounted into the ESC.
The SSD cables were in the tray on the ESC and WSC.
Lastly the beampipe was inserted through and into the MSC/WSC rather than the MSC beeing assembled around the beampipe.

A number of pictures are included in this post showing the progress durin the assembly process.

IST assembled on the MSC inserted into the ESC before beampipe insertion.

MSC/ESC with the beampipe inserted.

Interior view (through east end) of beam pipe, beam pipe support, and (blue) MSC Al cone

OSC/ESC just before being attached to the WSC

Final assembled IDS. Cables for the SSD sticks out of the service holes on the WSC and ESC

WSC

ESC . Notice the MSC with the IST services, cables/cooling  and the beampipe extending beyond the ESC.