Just to update, I'm glad to say I found the powerbrick and got it up and running again.
Was good to be back on it to be honest.
Currently its running 2.3 so I need to work towards getting it on to 3.12.
Only issue at the moment is that all of my USB keyboards are back at the office and with lockdown I've haven't been their since March! So I've ordered a new little one to turn up tomorrow.
MacMini 1.5GhZ/1GB MorphOS 3.13 Registered
Efika 5200B 440hz/128MB MorphOS 2.3 Registered