Same 'ol same 'ol ???

I am on my fourth WordPress theme now, and I still haven’t come close to what I need in a WordPress theme.

I am currently using this:
http://www.templatemonster.com/demo/48920.html

I want something like this:
http://www.templatemonster.com/demo/49415.html

but it is a Shopify theme and TemplateMonster wants $500 to convert it to a WordPress theme.

I have been searching and searching on TemplateMonster, ThemeForest, etc. and the themes are all basically the same. For example: I demo a theme that sells clothing. The main page shows an image of a coat, a shirt and a pair of shoes. If I click on the coat, I am directed to a page with pictures of that coat and some text describing the coat. This is great if I only want to sell one coat. But what if I have five different men’s coats?

With the Shopify theme, I can post an image on a page of a coat with a title of “Coats”. If I click on the image, I am directed to a page with many images of many coats. If I click on one of those, I am directed to yet another page with a slider of many pictures of that particular coat and some text that describes that coat.

Do you see the distinction? I have many incantations of items that I wish to sell that belong to a particular group, so I want the user to be able to choose the group first, then choose the item in the group, then go to the item page. Not just have a page full of items.

I spoke with a professional WordPress template developer who swears that such a WordPress template exists out there in the universe. I have yet to find one.
Any ideas?
Thanks.