First Solve.
1 Arm is Impossible, because the Glyph of Animismus, has to be accessed.
2 Arms is Impossible, because both Arms would have to have a Glyph of Bonding, and Unbonding.

You need to have at least:

1 Glyph of Bonding for 10g,
1 Glyph of Unbonding for 10g
1 Glyph of Animismus for 20g,
either 3 Arms, or 1 Arm and a Piston for 60g

Conclusion:
100g is min.