After a couple of days in the shop I emerged with the cupboards for the built-in oven/microwave, and bottom drawer. I'll build an upper cupboard once I get this finalised. The base, bottom drawers and oven cabinet are made from ¾ inch birch plywood, good both sides, with a 5 layer core, very strong and stable. I have to move the plug down a bit to accommodate installation of the oven and cut an opening for the microwave plug. There is a bit of painting to do, along with making sides that will work with my designer to tie into the built-in on either side of the oven. Challenging but it will work.