For posterity, here's my Craigslist ad for the Squareback I SOLD today.
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Description:
* This is a nice daily driver for a VW enthusiast
* 1973 Volkswagen 412 station wagon (a.k.a. Type 4, Squareback, Estate, or Variant)
* Marketed as "The Rich Man's Volkswagen" as it was the nicest VW of it's time
<---- New Paint --->
<---- New Interior --->
<---- New Engine --->

<---- New Transmission Seals --->
<---- Roomy --->
Ownership History:
* Original owner purchased car in Olympia Washington from dealer
* Second owner, a transmission specialist teaching shop at community college, acquired car after it was donated to the school. He rebuilt the engine and serviced the transmission in 2005. He put about 200 miles on the car after the rebuild before selling it to me.
* I purchased car in April 2007 and have put about 2000 miles on it while making upgrades and repairs. The odometer reads about 67k miles (reported to be original miles per second owner). I've used the car for my daily driver and it is great for commuting. I need to sell the car after buying a 1973 412 Coupe, due to space constraints.
Features:
* Roomy interior
* Comfortable seats
* Fully automatic transmission
* Reliable engine
* Smooth suspension
* Unique model
Recent Services (within last 2500 miles):
* Rebuilt 1.7L engine with rebuilt heads from Headflow Masters
* Valve clearance and timing set
* New vacuum and fuel hoses throughout
* New Cylinder Head Temperature sender
* Leak-free Manifold Pressure Sensor
* Pertronix electronic ignition upgrade
* New Bosch Blue coil
* New Bosch Tri-electrode spark plugs
* Rebuilt Aux. Air Regulator
* New Air Filter
* New transmission seals
* Rebuilt distributor
Drivability:
* Starts on first crank
* Idles and warms up nice
* Accelerates and shifts smooth
* Suspension rides smooth, but has slight front-end shimmy at 45 mph
* Brake pedal is firm
Interior:
* New carpet
* New front seat vinyl and padding - very comfortable
* Alpine CD player stereo
* Clean dash with few cracks (clock does not work)
* Headliner is free of sags, but does have a couple small tears
* New rear hatch hinge covers
* Windows operate well and do not leak
* Heating system is adequate even though auxiliary heater does not work
Exterior:
* Newer glossy green paint covering all surfaces - very thorough
* Doors close well but have small dents evident with correct lighting
* Bumpers have good chrome but dented in a couple places
* Full set of body trim, but dinged up
* Windshield is free of cracks or hazing
* Indicator lenses are clear and intact
* Tires are worn but still have life
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I passed it on in better shape than I got it and didn't loose anything but time so I'm happy.
I still have a few Variant parts for those interested.
* NOS rear turn signals lenses ($70/pair)
* Good used rear tail light lenses ($30/pair) and rear light housings ($20/pair)
* Good used rear swaybar with hardware for automatic ($100)
* Good used intake bellow ($20) and duct ($20)