Create a Data Map of Image paths when Migrating to WP

I'm Migrating to WP / WooCommerce (from X-cart)
There are a lot of images in this migration.
My plan is to migrate images first and sort that out. But How?
That's where I need a few pointers.

My thinking is ...
After creating the image folders I like, AND
after migrating my images, AND
Putting them in the folders of my choice, THEN
Export a list of images and path locations, FROM THERE ...
I can match them up with my existing database and I'd essentially have a data map of my images from the OLD server to the NEW server (WP/WooC). And All image filenames are unique.
Is this possible?
Or do you have a better idea?

OR perhaps (on the OLD SERVER), I could write a cool MySQL JOIN command that tracks images to their products, products to their categories and from there I have a data map as well. Hmmm... maybe this is a better plan??

You can use our import/export feature in our plugin which should be installed and work well on your old site.

Where is this "import/export feature in our plugin"? So you understand that our OLD server is NOT WP, correct? It is X-cart 4.7.x?
What exactly am I using on the OLD server?

RE: You can find at Settings > WP Media Folder > Import/Export. You can find it on the link above.

I want to import a CSV file into your database of images along with meta data... filename, Title, Caption, ALT, metadesc, categories, sub-cats.
That's it, your plugin would add whatever image data is typically appended, e.g. filetype, dimensions, etc.

Can you send me screenshots of the interface of actually used during an import of my field names and mapping them to your plugins expected field names?