Aaah, a subject near and dear to my aging lower back. With the proviso that without knowing how high your stem can go now, and how much higher you want it to go....

Asking for a removable face plate greatly limits your choices. Also, though you didn't mention this, but it's been brought up, are you willing to use a 31.8mm stem with a shim?

Without needing a shim for the bars, there is the Profile H2O stem, 15-deg uprise, removable face plate, 26.0 clamp. I used to use these a bunch. Available in silver and black. You'll get more rise than from your average vintage road quill, but not nearly as much as a Technomic. Subjectively, I don't find them very attractive. That said, _any_ mod done to _any_ bike to make it more comfortable/rideable for the rider is a good thing in my book, as long as it's a safe mod.
https://www.roadbikereview.com/produ...h2o-stems.html

And, er, yeah, that's kinda it, at least in terms of current product I'm aware of.

Maybe an older Salsa CroMoto S.U.L.? Just be sure you get one that wasn't defective and subject to recall, and likely black only. I don't think these are in production any more:
Salsa CroMoto Stem Recall -

Nitto had a nice tig'd mid-rise upjetter in 26.0 with replaceable face plate, but just two bolts. The quill wasn't very long, but the rise angle got the bars up a bit higher. Definitely not into Technomic territory. And prettier than the H2O. I've had a couple/few, doesn't seem to be in production any more, couldn't find it rebranded by Blue Lug or Simworks, can't remember the model #. I've got one on my Raleigh Pro Track now.



Otherwise you might have some options in no-name/generic-ish Taiwan/China stems? Don't know if that's a market the Hsin Lungs of the world made product for.

Give up on the replaceable face plate and bob's yer uncle. Plenty of 26.0 quill options out there. Or pay serious $$$ and have somebody make a custom for you. I'd guess maybe $250-$300?