Iso: mariachi band for cocktail hour

My fiancé and I are searching for a mariachi band to play in Columbia, SC at our cocktail hour and a little at the beginning of the reception. So maybe an 1.5 hrs? My fiancé is Mexican and his grandfather who he was extremely close with was a mariachi and I know it would mean. The world to my FH to find this But we haven’t had a lot of luck finding one that would come to Columbia, SC let alone do that time frame. Any recommendations/ help/ ideas???