Need images to change based on customers form selection.

I need Images to change based on the end users selections from different drop down boxes. If they want Brown for example I would need the picture to switch to brown. I can supply all of the pictures necessary. I would then need the pricing to be able to change based on their selection. I would provide pricing ofcourse. They would then need to be able to checkout on my website which uses squarespace ecommerce. I can provide passwords so you could work within my website. If project goes well and has low budget I will look to use you as my goto website person. I don't have the time to learn all the intricacies of web development.