Bump!
I too am in dire straights needing a replacement power button assembly, the buttons "arms" that suspend it in place snapped so im having to push the physical button present on the pcb, and also I need replacement 3.5mm ports to solder into the front panel, apparently removing and plugging in a headset with mic a few dozen times wears out the plastic isolator and pushes the internal pins outwards so you never get a connection again in under 3 months of use, I had made a thread about it a while back but it never saw a reply.
Bit mad a case that costs a few hundred £ that looks so well made has such a flimsy front panel.