Interesting concept.
Having used anything up to nine plates @ times, I wonder how the necessary running clearance between plates will be achieved.
Accuracy of manufacture & materials used are significant factors. The last clutch that I 'engineered' from a motorcycle derived donor has alloy/friction grip plates in conjunction with top quality steel plates in all alloy housings. It worked well & ran true with no distortion or grabbing. Yet the clearance for running plate separation was still more than the standard amount that the Lambretta leverage provides, even with the arm set @ an acute angle, necessitating a shortened arm, which TBH I already possessed.
If "plug & play" means just that, no necessity for increased clutch running clearance, bearing in mind that the number of plates are being doubled, I will be amazed.....