Well, as for many things in Montenegro (but I think it is a more global tendency these days) you tend to find really cheap / low quality supplies and very expensive / high end supplies, but the offer in the middle "normal prices / good quality" is not so easy to find...
I guess this matches the demand and offer of real estate too, which is now really on those both ends, cheap properties, and super expensive... If you target the "in between" you might be able to achieve something. It is indeed a lot of work to get workers to the work as you want and as you are used to in Western Europe...
If you plan to live here, you would probably have to do the project management yourself, as this is the best way to control the quality...
What are your qualifications / background? Are you architects / Interior Designers?
Cheers !