Custom Zen cart module

I am interested in custom zen cart module that will do the following things: 1) will allow me to display different payment methods based on customers ip range. I want a certain ip range to view only a certain payment method that is not available to the rest of the ips 2) allow me to display an image on the contact us page that is visible only to the same ip range as above and invisible to the rest of ips. compatibility with the latest zen cart version is needed. Quote please prices and time of delivery.