Well, swapping out the panel itself is not quite as straight forward as it sounds as i believe there is a heatsink element attached to the front internally, so you would need to disassemble that as well as part of a replacement process. For this reason, we actually ask for the unit to come back to us to have this service carried out.
If you can find someone to maybe do a 1:1 silver/black unit swap out then that might be easiest/cheapest.