I have to agree with John, the Sekonic meter is a solid functional meter that feels really (really!) nice in the hand, there is a reason it has been around for so long. However, it does not have the sleek look when fitted on a shoe, that space belongs to the Voightlander VC meters, which are also solid functional meters (and made out of aluminium instead of plastic to fit the OP's preference). They were designed to be on top of the camera, and there are many Asian copies, so you can select one that fits your aesthetics. The Voightlander VCII is a solid meter that looks good on top of these old cameras.
I also have the Gossen Digisix meter, which is tiny and portable, but does feel as good in the hand as the Sekonic, and although it looks better on a shoe, it's still a clunky add-on like the Sekonic. It's also plastic (I don't have aproblkem with that, but it seems the OP does). Although the Gossen is smaller and lighter, the Sekonic was in my pocket more. However, I've mostly switched to a Sekonic 308, which I would happlily recommend if you want a separate digital hand held meter.