Buttons. These are pretty close to the original but no doubt less sturdy. Although for now they feel fine.
Grey colored buttons are still in transit. I got Red, black, Yellow, Blue – all with LED:
LCD Display (just a generic 40×2 – one of many I have. I’m waiting for OLED’s to become cheaper again, then I will order a bunch of those)
Midi connectors – these are the same as used on the original. A bit expensive, but I like ‘m.