I've recently assembled twenty of these deep plywood nucs, using 15/32" exterior grade plywood of 5-ply layers. I made several small adjustments to the plans; I make my bottoms of cardboard salvaged from old boxes, I cut them to fit the nuc bottom, then cut a small 2x3" vent window in one end of the cardboard, then staple a piece of #8 hardware cloth over the opening, I then melt beeswax into the surface of both sides of the cardboard, then I staple it onto the bottom - I place a thumbtack on the rim opposite the screened vent (to indicate where the entrance should be). I use upper entrances (created by leaving one upper edge open) and on the end opposite the bottom vent screen - I form them by either sliding back my polystyrene covers or the upper super, which I usually use to provide space for feeding and sometimes space for colony expansion. I've never actually made any exactly as D. Coates original specs call for. I've also never painted any, and have not yet had any warp, deform, or in any other way fail to be serviceable - they do get rained on, as often as that happens around here.
This way there is usually good ventilation and with a cloth or screen cover they are ready to be transported to their new home.