Problem is even the proposed whole-head transplant is based on using your existing cervical cord.
They figure they're about 50 years away from that technology being attempted even experimentaly.
Whole head using new cord? Who knows how long.
But, I did grow up ten doors down from professor Robert Ettinger and followed his work closely from my 20" bicycle while the news crews were interviewing him on a fairly regular basis.
There is hope!