Hi there,
I can help you do this.
What is your website url ?
Is it custom made or using some CMS ?
I have experience of working with paypal API.
I will provide with portal to manage transaction stages
I have over 6+ years of experience in php, mysql, css, facebook apps, codeigniter, app, json api integration etc
I have developed software like accounting, inventory, facebook apps, ecommerce websites, personality test, booking software, deals website etc.
I can present demo/snap shot of application too.
Waiting for your response.
Thanks,
Amin