Very practical, very good ideas, much of this is planed,

Resin breaks of the side wall of a smooth container very easily, i think adding mesh to the side walls and then printing grids that attach to the sidewall mesh could be very helpfull for really large objects.
You could print another thin grid every 3cm, making a 3d matrix of nets that keep prints from moving.

I plan to implement most of this when I attempt to print a full size canoe.