This story has a lot of potential, but the author is way too lazy with everything...
"mc need a cart? here it is here your cart"
"mc need to buy material the pedler sell them" (why the hell would a peddler sell iron or any other metal? The dude is a peddler, why would he transport thing that he can only sell to blacksmith? that's not a peddler, the dude is a medieval amazon?)
"mc want to sell his high grade sword? some dude ask the peddler to make a personal order"
And how could a peddler build a store in a mater of week? The dude had enouth money and was accepter by the lord of the city? And then he magicaly build a store in the middle of the city?