The bottom should probably be cut out with a larger tool, so as to save time, so:
Apply
Lastly, the toolpaths will need to be arranged and ordered adjust for optimal material removal — in particular, the small V to full depth toolpath should be cut last and may have its Start Depth set to the bottom of the joinery depth toolpath.
To adjust the draw dimensions, it is a simple matter of aligning a set of nodes on the grid:
Then selecting everything:
Going into Node Edit mode:
Select all the nodes at one end:
and then zooming in and shifting by multiples of grid units:
Attached as v8 files.
drawer_box_template_v8.c2d (276 KB)
drawer_box_template_NESTED_v8.c2d (320 KB)
Please test carefully and adjust toolpaths as necessary for fit.