not wanting to discard the perfectly good smd-components that are already on the Mk1 pcb a candle-light desoldering session was in order: the Mk1 pcb below - roughly 1cm above the flame of a small tea light candle - and the Mk2 above ready to receive the transplant

moving the candle under the specific components to desolder; small tweezers in one, the solder iron in the other hand - worked like a charm :-)