Gallery 2 / Zen Cart - integration / customization

we've installed the Gallery 2 / Zen Cart integration module and it works great! but we'd like it to work even better and we're willing to pay someone who has an intimate knowledge of the code in these applications to do it for us

We would like it so that when the user clicks the Purchase link, it just adds the item to the shopping cart, without directing then away from the Gallery page, with a check mark to indicate that the image is now in the cart. There would also be a link to the shopping cart the customers could use after adding a number of items to their cart. In the cart they would be able to change the purchase options (print size, finish, etc...) and then update the cart to reflect the updated options.

If any one would be interested in taking on a project like this please let me know asap!

thanks,
EK

Thanks