Then the men of Israel said to Gideon, Rule you over us, both you, and your son, and your son's son also; for you have saved us out of the hand of Midian.
"And Gideon made an ephod thereof and put it in ...  Ophrah"  (Judges 8:27).  This does not say that he used "ALL of that gold" in making the ephod, but that the material in the ephod came from it.