Here is how I see it. 1st sorry .. big deflater.
2nd, Reality, speaking from experience (PM me if more info) Ford will step up and fix the problem. My recommendation is to get the International folks involved and get a complete engine from the assembly line fully dressed, rather than have them transfer parts from the existing motor to the new one. This way you get a job 3 engine in a job 1 truck, all the latest and greatest stuff.
3rd the lemon law does not apply, and Ford Consumer Appeals Board would recommend a engine replacement.
4th: Ask Ford for an Extended Service Plan - Prem Care full boat to restore your well being. This will pay for your rental car while the truck is in the shop. And if anything does go wrong in the future it would be coved on Ford's nickle.