Hi there,
I hope you must be doing well!
I and my team has done hundreds of PayPal integrations with affiliate programs and e-commerce websites.
Kindly give us a chance and have a call with us over phone/skype first before awarding this bid, and if you like our profile then you can grant us the project as we can get this work done very easily.
Looking forward to hear from you soon and have a long term business relationship with you!
Regards,
Ron