Where can I find someone to make a custom cake topper for a reasonable price?

My fiancee and I are getting married in about a year and half and we want to have a wedding cake topper of me and him standing on top of our cake with The Doctor and the Tardis from the British television series Doctor Who... I can find the Tardis and The Doctor pretty easily but I need figurine things of my future husband and I to match them and be in normal clothes... If anyone could help that would be super amazing.