Marketplace Wordpress site payment gateway API integration

Hello. We have an API integration document with all info here: [login to view URL] The integration process is performed in a development environment PURPOSE OF API: 1. Website will have multiple vendors (sellers) and admin will receive 10% commission from every checkout payment (admin commission will be defined via the payment gateway developers, not by you). 2. Customer can add multiple products from multiple sellers & make 1 payment in checkout. The payment will be split via use of "tokens" from the credit card info. Reason for use of this API: Paypal adaptive payment solution is not available in all countries + processing fees are expensive. This API solution is a local and cheaper solution. *About 50% of integration is done. MUST: 1. Please provide links to similar projects you have done in the past. 2. Please provide delivery time estimation. 3. Please be responsive and provide updates at least 1 time a day. 3. Contact through this site ONLY. Any contacts outside of this site will be ignored.