Wordpress theme customisation HOMEY theme

Sync google calendar on singup and we also need to add a button inside the user dashboard so if someone did not signup by using google so they can sync there calendar from there as well i need ti be done this with in 24 to 48 hours but i have already some work done please bid if you really can do this please don’t waste my time at all if you done good we will have more business in future as well