Well, I am not in any position to find out, and I already did a little research to learn about where the empty villages are, but the person who did the research to find out, and reported their numbers, and made a graphic, never got back to me when I asked. But I expect that the relevant bulgarian ministry in charge of census and tax registrations can probably provide the necessary information to find out where these places are.
I would guess that probably there is more than a few in Romania as well.
The idea is not so original, really, I originally coined a name for it, the "Free Village Project", derived from the Free State Project. https://freestateproject.org/ The idea was to have a proving ground for a pure anarchocapitalist private law type situation. Well, I guess steemit.city is sorta like, and then add cryptocurrency, and steem.
The puzzle is in finding out how much it will cost at given locations that are found, per what you get, the benefits of the particular location, and the obstacles that have to be dealt with. It should not be difficult, in most cases, to persuade the land title holders to get something rather than nothing for their, probably now fully gypsy-stripped old villas and shops and such, and there will also be the issue of negotiating with the relevant 'authority' who owns the roads, plumbing and the central government building that almost all villages have.
So it's not a small project. First to find it, then to find out who owns it, then to negotiate a sale to acquire enough of it to get the project launched, to find the people who want to invest... I'd think maybe 5-10 million dollars would be a starting point somewhere around that. Your project is more modest in costs and so forth, but I think that maybe, with time, this village idea could go somewhere. The trick is to have a ready resource that can be produced in this place. Obviously, there is plenty of nature and old buildings to be had. But we can also set up servers and miners, and maybe eco stuff as well, energy generation will be an issue for this.
A true anarchocapitalist, cryptoagorist/anarchist little village. It is a nice dream. I hope someday it is realised, and demonstrates the benefit of the way we do things here :)