What makes you say that is a great litter size? I had thought 8-10 was a better litter size for meat-type rabbits. (Of course it doesn't matter much when they all die anyway.)Fames had 6 kits last night - great litter size for a New Zealand white.
None made it to morning. Bellum is next in line. Debating whether to give Fames another opportunity in three months or not. This is her second failed kitting.
What is the reason for waiting three months? If she was mine, I would be inclined to rebreed in about a week, and either cull her or not depending on how she does that time.