I've looked at retro fit options, I'd be happy to fit one and may still do so, but the best one I've seen is actually the three wheeler setup.
I like its one handed central push opposition, it's also clearly something the Morgan factory did fit to a few four wheelers as proved here in this recentb Berrybrook video.
It was obviously a factory option at one point, but was it a custom piece designed to mate with the 32 spline four wheeler column, or is the three wheeler column also 32 spines thus making a three wheeler quick release hub a direct fit on my 2012 DuratecPlus4?
In the meantime, if Morgan sourced the three wheeler quick release hub from Lifeline, I'll see if they still offer it?