Nikon had one over a decade back EDG Fieldscope 85 VR. The trouble is that with a good tripod there is no need for additional stabilisation. You can easily go over 100x. Of course wind and people walking over wobbly hide floors can cause juggles where stabilisation might help things. I’m guessing finding anyone with Nikon VR experience would be tricky.How about an IS spotting scope?
Peter