Well your Retro DSA collection is certainly extremely versatile and timeless, the titanium build looks beautiful too, I stuff the empty space on my keyboards, if there is any, with coins to add bulk tho, so for me a titanium plate wouldn't make much sense :) (bulk really increases the grip of rubber feet too)
Off topic, I also find it interesting that, in the backgrounds, you always seem to have a non-custom keyboard with mostly stock keycaps :)