Payment gateways Installation/Parametrization on Adult Tube Script

We are seeking for a great LAMP programmer= Linux/ APACHE /PHP / MYSQL to implement/parametrize/test several payment gateways within an Adult Video tube site, similar as this one: [login to view URL] For privacy reasons, the real website url will be disclosed to the winner. There will be different payment gateways to set, accordingly if the site is the desktop version of the mobile version itself. The payment gateways / pricing points (subscription packages) to be shown within the frontend user interface, will be accordingly to GEO IP Country detection. A) We have designed an mockup example PDF explaining the whole idea. Check the attached PDFs. B) We have aswell attached another PDF doc with several other more explanations on how we wish to have the whole stuff implemented. The whole code within the tube site is completely open and commented and its set in modules in order to allow easy tweaking/mods. The script itself already has a simple "payment gateway configurator backoffice" which already includes two (2) of the gateways we want to have implemented, nevertheless minor corrections/improvements within the call-back urls/ filling SQL tables and other tweaks might be needed. A complete redesign of the frontend payment interface is needed, both on desktop and mobile site versions. Minimum requirements: - We will only accept developers who accept escrow payments. No payments without escrow. - Depending on the complexity, we might be forced to set "deadlines/goals" to be reached, for each escrow payment to be released. - The chosen programmer must have a long track record history on freelancer.com, with huge project completion ratios and a lot of projects previously fullfiled. - Must be ok with adult / Porn web projects and related content within them.