I don't see why you couldn't run any of those locally if you buy the right hardware?

I haven't checked myself, so I'm not sure, others might be able to provide the answer though.

If they (all of the mentioned ones) are open source and can be ran locally, then most likely, yes.

From what I remember, they are all local and open source, so the answer is yes, if I am correct.

Mistral ocr is closed source