Typical Rev MaxSwerve layout with a 27.5in x 27.5in Robot:
Stacking the brackets gains an additional 2.5in:
Spacers will be needed, but it seems interesting and is something Trial Nā Terror (7900) will be looking into.
The brackets should also be slightly modified for all the holes to be used.
I would say there is a lot of pros and cons for this, but I thought it was neat.