I've got two 2.0L 914/4 engine cases for sale. The first one is a "virgin" 2.0L case off the '76 parts car. When I stripped the engine the crank was free and all the bearings looked good. $200 for that case. I've also got the heads for that engine for sale in another ad.
The second is supposed to be the case from my '73 but it was sent to Brothers VW Machine Shop for rebuild and it came back without a serial number. That case has been bored one over and set up for 98 mm cylinders. There's some other desirable modifications and I'll be happy to go through those if someone is interested. Note that that engine spun the rear main bearing after a few hours so that case needs to be checked by a machine shop. Because of it's questionable state - I'll sell it for $50.