Welcome to the Bunnings Workshop community @ANDREW1963. It's fantastic to have you join us, and many thanks for your question about cabinets.
We have the Kaboodle 600mm, 800mm and 900mm slimline wall cabinets. They are 360mm high and 300mm deep. However, none of these slimline cabinets will achieve your desired 60cm deep.
You might need to consider custom making your own cabinet carcass out of CustomPine laminate. If you are able to access a store, our helpful team members can cut the board to suit your required sizes; you'll then just need to assemble it at home. If you constructed the carcass in the same height and width as the Kaboodle slimline cabinets, you could use their slimline doors on the front.