Our check out page use to have the old version of PayPal Express but we need to configure our checkout page to process payment for an order using the Smart Button and In-Context would be preferred. IPN is already configured so we just need the payment processed everything else should be good.
33 freelancers are bidding on average $176 for this job
I have worked on couple of such projects before. Let me know if you are interested. Regarding your project I got couple of questions to clear before we proceed further.