Build an Online Store

Hi, I want someone to help me out with easy sign up and single step checkout in Opencart 2.1.X In Sign up i just require, Name, Gender, email add and Mobile Number field. In Checkout page i just want ORder confirmation step, no delivery, no shipping and no payment. On Confirmation, user will get a randomly generated code on his mobile. I will provide you link for the same. Person can not add more than 1 product of same type, and can not purchase more than 5 deals in a day. This is very very very urgent requirement, i want someone who can finish this task within 24 hours. Ping me if you have some question in mind.