Party space rental

Hello Slovenia, soon I will be celebrating rd and I would like to organize a slightly bigger party, up to 25 people. I am looking for options at the end of January, somewhere near Ljubljana, all the way to Maribor. I would like for us to be relatively alone, so that there are no cajeks. I would reserve the space/property in full, as many beds as possible, otherwise we will find ourselves. Does anyone have any suggestions or options, we can also switch to private if one of you has a suitable salary. ZS only serious 😉 thanks in advance for your help!

EDIT: the picture is for the forum, we are relatively responsible people and will clean up after ourselves, including baby oil.