The Moto-Guzzi Nuovo Falcone VOC

Happy, safe and prosperous New Year to one and all.
Just treated myself to a little present, namely an inner and outer flywheel casing for my Civile.
As the exposed flywheel is a major part of the attraction of the machine, I intend to modify the outer cover so that the "bacon slicer remains a feature of the beast, consequently I would welcome pics / comments from others who have already done this.
Also, I'm assuming that the flywheel will have to be removed to fit the inner case, so is it keyed onto the end of the crankshaft, or will I need to reset the timing?

Thanks, Kater - good info, as usual.  Apologies for the stupid question regarding flywheel removal and timing.  I usually have a fair idea of what's involved in jobs such as this, but this time I failed to engage brain before hitting the keyboard