K > Getting the calories up is what scares me especially after the mega splurge I had this weekend.

I'd be very surprised if you could consume even weight maintenance calories on a zero carb, moderate protein, high fat diet.  I certainly couldn't and the weight fell off of me starting about day five.  As others pointed out, you'd HAVE to learn to get your calories from fat and thereby level off.  But in three weeks I didn't.

Jim