@lbruder, RAM will be the issue. One 16x32 panel takes 1.5KB of RAM. A 32x32 panel takes 3KB. I think we could manage 3 16x32 panels at 4.5KB and possibly 4 (or 2 32x32 panels) at 6KB but no more. I have to do some compile tests to see what happens.
UPDATE: The maximum number of 16x32 panels I could compile for and still run was 2 (or a single 32x32 panel).