@hiram.k.hackenbacker had an issue with a neck in the last few months with a Fender. At first and in order to quickly fix the issue he bought a Status neck to replace the Fender one with the broken truss rod. This was good enough to help him keep his gig commitments.
In the end, I believe Fender supplied a new neck without making the additional demands you mention. Mr Hackenbacker might be good enough to give a better comparison of the two situations (yours and his own). I doubt that it will help other than for interest though.
I admire your determination to get a good result without throwing lots of money at Warwick.