PSU for Amiga RocHard RH800C

[ibright]

After taking my A500 out of storage - I cannot find the power supply for my RocHard RH800C.

Its specification can be found here:
http://amiga.resource.cx/manual/RocHard_RH800C.pdf
It's basically a 5 DIN plug => +5V and +12V

Anyone know where I can get one or someone who might be able to make something compatible?

thanks