Not sure if you're still looking but I bought a pair of 10T Shimano LX M560 / 105 jockey wheels from Condor Cycles in London earlier this year. I think they were £8 the pair. They seemed to carry them as a standard item.
Maybe worth a try: Condor Cycles
As for a gold breakaway bolt if you can't get NOS I think Middleburn's one is still manufactured to their original design so should suit older Shimano rear mechs. Worth double checking compared against the mech in question before buying though :roll: Middleburn Breakaway Bolt
check out the shop they have loads of sparkly coloured things
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