Do you know that house 23 was actually right IN Vinica, or could it have been one of the villages (still in the Vinica parish records)?
As you know there are very few Slovenian church records online, the Slovenian church wants it that way, so you can either write to the Archives in Ljubljana or to the parish priest asking him to look in the records. For the former you might send the going rate of 15 Euro up front; the priest will generally e-mail you what he finds and then you might send the same amount after for his trouble. But the priests are busy and might not get back to you right away!
I'm pretty sure Ancestry won't let me publish the particulars on contacting the priest in Vinica, but google will probably also get you there. Or, message me if you like.