They both come together with the stock combo-Cho Z Spriggan 0W Zt’
It sounds like they don't want to spend $40-$50 on the B-128 ChoZ Customize Set. But it may surprise them to learn that since it's the only place to get Wall, and one of the only places to get ChoZ Spriggan outside of a $30 Royal King version, no one really wants to sell those.
Not surprised, just want another wall