I've wanted to add such an indicator to my car's dash (I already added a boat compass, which I find quite useful and aesthetic). Unfortunately, electronic indicators of any kind are much more rare than vacuum powered ones or all-glass cockpits.
(Only pondering though, I have had the same idle thoughts about making my own Russian Soyuz mechanical navigation instrument too from this other writeup of Ken's https://www.righto.com/2023/01/inside-globus-ink-mechanical-... but somehow the idea of making replica soviet vintage tech isn't as appealing as it was a few years back...)
The number of planes without a vacuum system but with electrical mechanical attitude indicators is quite small. Your best bet are electric mechanical backup instruments used on earlier installations of the all-glass G1000.
Take a look at Diamond DA40 and DA42 for electrical backup attitude indicators, but for example their next models (DA50 and DA62) use all-glass backup instruments.