jimjim1:
My suggestion is not to bother, get a simulator/emulator for you PC if you must have that '80s experience.
Ah, but what about that Spectrum
experience? Wobbly, slippery synthetic rubber keys, nicely heated by the electronics inside the case. Conundrums in dexterity as you try to hold down interesting key combinations to access various functions.
And... the sound of a wasp in a tin!