Conversion Kit for Astoria Espresso Coffee Machine

Description

This is conversion kit  CMA 2 Group.   The kit and the Astoria Gloria 2-lever were originally purchased from Blue Bottle.    I never got around to installing the conversion kit and the
Astoria sold with the Coffee Truck.
Everything is as shown in the diagram except for part # W.10602.  For some reason that part doesn't attach to the valve due to the shape of the copper tip (see the last photo).  I assume this will need some type of adapter?  This came with no instructions, which is common,  but I found a Youtube video with good instructions and some websites that discuss installation.