*** Not mine/no affiliation ***
This seems like a darn good starting point and price for a sweet homebuild.
Bishop, CA is in the Sierra Mountains, roughly straight East of SF/San Jose and almost to the Nevada Border.
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1996 Ford E350 4WD Van conversion - $9750 (Bishop)
http://slo.craigslist.org/cto/4694649595.html
1996 Ford E350 4WD van conversion. 7.3L Powerstroke turbo diesel engine, automatic transmission w/overdrive, near new all black interior, Captain chairs and bench (that makes into a bed) seats 7 people. Lifted, AC, CD/radio/USB stereo. Great all-terrain camping/hauling vehicle- think Sportsmobile without the built-ins. $9750.00 OBO.