import a .xcdatamodel in CoreData CLI

Answer 1

It looks like you've got some basic problems in the way you're setting up the Core Data Stack. Namely, the first problem (and I stopped there) is that you're trying to create an NSManagedObjectModel instance from an NSEntityDescription. Boom.

Have you read and followed the Core Data Utility Tutorial? It's easier for you to follow the tutorial and report on the problems you find there than to parrot its instructions here.