Monetisation Programming on iOS and Android Game using Unity Engine

What i'm after is for somebody experienced to sort out the monetisation & in-app programming side of things for me on an iOS and Android game, and to also assist with implementation in the game and to the App Store.

I bought a plugin, "Stan's Ultimate Mobile", that should in theory have a unified API between platforms, but it's really not cost effective for me to blunder through it - I'm a 3D artist and designer with a zillion art and design things that need doing!

I want to integrate the in-app purchase stuff from this and maybe further down the line it would be awesome to have online leaderboards, facebook intergration and other stuff like that.

This should initially be a pretty simple process as most of the work has already been done with the plugin - its just some basic scripting to tailor it to my needs. The other main thing is to be easy to contact and fast to respond to any queries with regard to implementation and intergration.

UK location preferable for ease of comunication.