Guy,
I removed the factory a/c from my hpe and still have all the stuff
in a fairly sorry state.
I retained the compressor engine block mounting due to not having an easy
and viable alternative. Eric, at the time, posted some pics on my page of what bracketry
he has, and may still have, but it didn't appear to help me at the time.
I have the condenser, evaporator, compressor, dryer, the heater box (containing
the evaporator) and the vacuum-actuated push button panel. And all the hoses.
Having said all that, I would not recommend using any of it in its current condition.
Maybe the compressor, after an overhaul, but it's very heavy and using 50 year old tech.
I never attempted to fill and run the system before removal.
However, some of these parts could be used as patterns for a remake.
I have toyed with an a/c retrofit, and would use CBS parts, an electric compressor, and a stand-alone
evap and fan in or above the pax footwell, possibly in place of the glovebox container.
Food for thought.
Nigel