EM&M Spectrum Synthesiser Wanted

EM&M Spectrum Synthesiser WANTED TO BUY
Working or not, we'll consider buying one for repair or parts.
If you've got one, please use the contact page to get in touch and include your phone number.
Thanks!

Published as a DIY electronics project in Electronics & Music Maker Magazine in 1982, this synth cost only around 200 british pounds. The Spectrum Synthesizer Book by Maplin Publications offered full technical information - we're interested in that as well. 

We're also interested in buying these synthesisers (intentionally spelled the British way) :):

ETI 4600 / Maplin 4600
Maplin 3800
Maplin 5600S