Custom Wordpress Plugin

Closed - This job posting has been filled and work has been completed.

Job Description

I need a custom wordpress plugin that will extend a wp e-commerce product so as to create a "box builder."

I have a store with several 1 liter containers that we will ship in predefined box sizes (4 per box, 6 per box, etc).

I need a plugin where a user can customize which liters they want to comprise the finished box. Ideally it will have a hook so that if I am on an individual liter product page, I can add it to my box with a custom button. It needs to work with the existing wp e-commerce product types though so that I can maintain the existing store functionality provided by that plugin.

Thanks for looking.