1- Which way do I put the dryer in?  Under the wheel-well, the inside
line runs to the condenser, the outside line runs up through the body to
the evaporator/overhead unit.  Is the flow of refrigerant from
compressor>evaporator>dryer>condenser>compressor?

2- I'm assuming the high-pressure line on the compressor is the one the
hi/lo pressure switch is attached to and the low-pressure line is below
it.  The lower hose has a connector for the gauges, BUT the Dude who is
going to evacuate/charge this beast wants to know where he's supposed to
attach the low-pressure gauge???

BOB - one who is better understanding why A/C dudes make decent money.