Would it be possible to have a command open an anvil but also cost money

[mmellow08]

This is what I have right now, and im just using basic skript

command /Anvil:
    Trigger:
        execute command "eco take %player% 500"
        set {Anvil2} to a new anvil inventory name "Work Benches"
        open {Anvil2} gui named "1 Use" to player 

the under lined part does not work I Was Just Making A Guess To See If It Would Work