SOUND WARNING!

Calcification feeling a bit left out over there in the corner.  Every single other useful glyph shares the hex just to the upper right of the arm.  The ordering of that stack is surprisingly specific.

This is min cost unless I'm completely missing some far lands tech or something that lets you move atoms around without an arm.

The MVP "this shouldn't work" piece of tech in this solve is the creation of the iron atom.  A tin is unbonded directly onto disposal, and just sits there at the end of the cycle.  The beginning of the next cycle, the arm drops the other tin and the projection triggers before the other tin is eaten.

I didn't do any area optimization here, the movement is already pretty finnicky and specific.  I'm curious to see what other layouts or sequencing will beat this.