I wanted a place where I could buy lots of soul gems in bulk so I made a new vendor that will sell them. The shop is located right outside of Arcadia's Cauldron in the Whiterun market. 

The vendor has a stock of: 
Petty Soul Gems - empty and filled (Mostly Empty) 
Lessor Soul Gems - empty and filled (Mostly Empty) 
Common Soul Gems - empty and filled (Mostly Empty) 
Greater Soul Gems - empty and filled (Mostly Empty) 
Grand Soul Gems - empty and filled (Mostly Empty) 
Black Soul Gems - empty and filled (Mostly Empty) 
1 Iron dagger with soul trap (for disenchanting) 
1 soul trap spell tome 

There is a screenshot of an example inventory, things that are not listed above are from the vendors personal inventory, that will get in the store because of a bug in the base game that I can't fix. (Comes with the perk that allows you to sell anything to any vendor) 

Conflicts: 
This is likely going to conflict with Whiterun overhauls since this edits an area within Whiterun. The only changes I made are right where the vendor is so other than that area there shouldn't be any conflicts with other mods. 
Conflicts with Open Cities

Changes: 
1.1 - Fixed the Darkface bug. Had to change her to not being a vampire to do this. 

This is my first mod! So of there there is anything broken please let me know so I can see if and where I might have made a mistake!

Credits: 
Darkfox127 for his extremely helpful YouTube tutorials.
r/skyrimmods for helping solve issues