I feel like most of the places you can find the specific Tai Hao Alps doubleshots you’re looking for are going to be keyboards that are pretty desirable in themselves, like e.g. the Northgate Omnikey 101, and Alps-made doubleshots aren’t going to quite match. Actually, I’m not sure if there are even any keyboards with Tai Hao doubleshots and a caps lock with a top step the size of the tab key.
If you’re interested, I have a set of middle-gray-on-offwhite and dark-gray-on-middle-gray Alps-made doubleshots, with an ANSI main section/F keys, but with arrow keys up above all in top-row profile, a funny truncated numpad, and missing insert/delete/home/end/pgup/pgdn. (From an old luggable.) They’re slightly yellowed, but I think they actually look quite good that way, kind of creamy.
I’d be willing to sell you the whole set (they’re a bit nicer than the Tai Hao ones IMO, though you’d probably stick with the ones you have for the arrows / nav keys) for pretty cheap, say $40 shipped?