Mother the open back tank top

DONT BUY THIS LISTING Im going to the eras tour in less than 20 days and this top is still sold out. If you know how to sew/knit make this shirt exactly how it is in the picture with the open back before my show ill pay you $60 1) for the materials 2) for your time Please please please someone help a girl get her dream eras tour outfit. I wear a size small :)