Sinclair Disk Drives

[RWAP]

I have a few partially working disk drives here - the problem is finding matching drives and especially with the black bezel

I have

a) set of Cumana disk drives - I can't remember whether just one or both do not work
b) set of Eidersoft disk drives - I need a replacement NEC FD1036A (1/2 height) drive for this as only drive 2 will format disks
c) set of Miracle disk drives - I need a replacement Mitsubishi MF353C-358M (1/3 height) disk drive as drive 1 does not respond. I tried swapping the circuit board for one from another drive, but although the motor then started spinning, the minor differences in the circuit board meant that it was not a good enough fit - namely you can't eject the disk (!) - mind you, the drive I removed the circuit board from had the same problem of ejecting the disk, so that is probably something on the circuit board itself.

It doesn't matter so much about the colour of the front, as I can swap it for the ones I have here.