Value of 911/81 engine case
 

In a parts stash I purchased was a 911/81 engine case.
History (as told to me) it was from a 40k car and it had spun a crankshaft bearing.
No cracks or repairs seem evident. Being a magnesium case it has corrosion on various places. Some bearings are still in place, believe the one missing is the spun one.
Looking for a value as it sits.

Pics:

http://forums.pelicanparts.com/uploa...1535209337.jpg

http://forums.pelicanparts.com/uploa...1535209337.jpg

http://forums.pelicanparts.com/uploa...1535209337.jpg

http://forums.pelicanparts.com/uploa...1535209337.jpg

http://forums.pelicanparts.com/uploa...1535209337.jpg

Thanks for any help!

Any fair value opinions?