Does it have to be adjustable? I can't find very much with 26.0 clamp diameter.
A roundabout way to getting what you desire is to buy a threadless stem adapter and use an adjustable threadless stem.
Adapter
Adjustable stem
This is available in 95mm but then you also have to buy a handlebar shim
https://www.google.com/shopping/prod...D4rdoATNlLWgBQ