Very vesital and FREE

I used this plugin for a customer and was glad to find that every place images are used, they can be set to whatever size you want. (Be sure to figure this out before you set up too many products, because, any time you change sizes, only the future images will be set to the change.)

You will also appreciate that you can set up as many products,categories and sub-categories as you want, something not all plugins allow.

Setting up with FedEx shipping is also free, not like woocommerce.