a simple direct case swap is somewhere around 1.02 on a scale of 1-100 of difficulty by the standards of this forum.
I would consider the case opening/closing much easier than pulling and re-setting a hundred keycaps.
the things we do to get just exactly what we want ........
O-rings are worth 1/10 their weight in gold, in my opinion, to eliminate that whole "bottoming-out" phenomenon.