It’s the joint between bar’s end and bar-ends that stops you now. That joint location does not change with shorter bar-ends.
What you want to find are some flush bar-ends that’s same 22mm (7/8”) diameter as bars. Then you can slide grips 1” outwards over them. Need to drill another hole in bars for controls to clamp in new location.
Kinda like whatever ends they use on these clip-ons.
https://www.amazon.com/dp/B07VR3SFFX/