I have absolutely no idea how I missed your add-on. I was looking for an addon like this for weeks/months and only today did I find the thread from 2015 where you were discussing development, thought it never got completed only to find it was and you posted it.
I find out today that you've literally removed all your addons yesterday for some reason. I swear, I am cursed.
I don't know what's made you decide to remove all your addons from Xenforo, but I hope to see your Marketplace add-on back in the future. I have the money and would be ready to buy.