Hey, I also have some KOSMO format pcb sets to sell/trade:
Preferably Europe (Germany), because shipping 
2x Roundhouse (befaco kickall clone, accent not yet working/checked) 13€
2x DCO (modified Hagiwo Arduino nano mozzi setup, I currently use it for chords) 12€
1x routing mixer 8€ (6 channel mixer with switches to output channel to output A or B (or mute)
1x Hihat (outputs switched, easy fix) 10€
2x midi2gate 10€
2x Turing machine 15€
1x Turing machine volts expander 10€
1x Turing machine pulses expander 10€
1x Lattice (MI Grids clone) 16€
1x Precision adder (like Doepfer A185-2) 12€
1x Triple Sample&Hold based on Rene Schmitz, but modified for lower droop rates 10€
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