As per scope of work 22.11.17 ITS/SG/2017/V1.0
-payment gateway (paypal, also the option of bank deposit and pay direct with vendor)
-quote estimator similar to that of horseguard [url removed, login to view] in metric
55 freelancers are bidding on average $1218 for this job
I am sure i can complete your web app with high quality. I have developed many web sites related to e-commerce. I want to contact with you asap to discuss further details. Waiting for your response. Best regards.