Ed morad (sp) up near cleveland specializes in salvage gm 3800 stuff thats probably going to be your best price astro is ok, but they mostly have older cars out there 60's-70's-80's
vin checks out as a z/28 it probably has one of those single exit exhuast sytems on it (or one of the tips fell off)
the rest of that article witht he car is copied out of motor trend I think
sounds like a fun road trip for a long weekend or something
they have featured shots of that town and parts of gary indiana in the series life after people on history channel
I've got ceramic coated tri-y's on mine (90 2wd) I thought they were james duff hedders (they came with the motor) time to do some more research I guess
do it old school and dig a cistern run all your gutters into it. install a manual or electric pump and your good to go.
if your fixed on the barrel idea a cheap sump pump with a garden hose fitting will do the trick.