Um, I need it for a full size keyboard. TG3 only stocks their compact keyboards, which have modifiers that don't fit any standard size keyboard. In any case, I've tried.
I didn't know Deck ever sold the keycaps separately.
Lots of people which they could buy Deck keycaps. TG3/Deck makes the best backlit Cherry MX friendly keycaps on the planet.
And with their new line of products (Hassium, Francium) the best keycaps even got better.
Meanwhile you can still buy dirt cheap used backlit TG3 keyboards for $15-25$ on eBay just for the keys.