Dear sir/madam,
My self Aman I have more then 10 years of experience in Development. I have checked your posted Job Description as per my understanding we need to Repairing the Website and installing a payment gate based on your job description.
For more discussion like what functionality you want into your website kindly send me message on Freelancer so that we can discuss your job requirement in details and based on our discussion I will give you best solution.
Thanks,
Aman.