you could pop the vanity to one side..use a nice piece of timber 50mm thick to make a feature hub ? to house tooth brushes ? the timber piece would have to be wider than that of the vanity cupboard and higher than the vanity to stand out.. or if you don't want it to stand out then ask the vanity people to provide a piece of timber that's cladded in the same laminex or painted in 2 packs so that you could use as a filler for the 25mm on the sides

Is your final photo of the vanity you already have? I also thought adding legs would take it back to the MCM you are after. Would be interesting to know how the silver drawer pull is attached. Not sure about painting it matte black as I thought timber furnishings were more prevalent then, but it's totally your choice. I hope you will post updates as you go. I just love mid-century.

You can buy mirrored shaving cabinets of various widths and heights from many outlets, and even on ebay. The crucial thing is to ensure that the edge of a door isn't centered on the vanity basin otherwise your reflection will always have a "crack" down the middle of your face. You should also consider wall lighting as ceiling lights often put your face's reflection in shadow. In this photo the middle door of three is centred over the vanity basin to avoid the issue. Best of luck Dr Retro of Dr Retro House Calls

Hi Paul, I hear your collective frustration! my comment about light bouncing into your eyes was in response to your question about bouncing light onto your faces from a light placed behind the vanity (from memory). Have you seen Dr Renos comment here - still the most logical response to me. https://www.houzz.com.au/discussions/5148857/where-to-place-power-points-and-lights#n=5 So I'm going to go for side lights next to the vanity cabinet. Trouble is, my vanity is off-centre to the cabinet mirror, so I still have to sort that one out. Time spent really considering this is well worth it. I think LED downlights may very well cast shadows, sorry to say :-) and the next consideration is what colour temperature - warm white or daylight? For relaxing ambience (75% bathroom function) it will def be 3000 warm white for me, however for the vanity functions it will be 4000K (daylight) so I will probably get the vanity lights switched separately to the main room light, maybe put that on a dimmer... I know there are some LED bulbs available that enable the colour temp to be changed within the same bulb...