Lezyne pump mount for Devinci seat stay

I needed to carry other things in the waterbottle area on my frame so designed this to move the hand pump somewhere else. The pump sits about 0.5" inside the outer edge of the seat stay so it won't get knocked while riding.
Ok so this thing is pretty specific to a lezyne pump and devinci bike but I'll describe how I designed it so someone can design one to fit a different bike.

First I wrapped the seat stay in masking tape (sticky side out for easy removal later) and cast the shape in hot g