Not exactly sure if this would work, but couldn't a compressor be mounted to
the charging fittings near the compressor.  The 110 volt compressor probably
will not have the capacity of the stock engine powered unit, so maybe going
through a shreader(sp?) wouldn't matter.  When the vacation was over the
compressor could be removed to save weight.  Just thinking out loud.

Doug
'86 GL Westy
Maryland