Interesting post!
Next week I'm going to travel to London for one week. However, I also have not real good ideas how to find suitable shops, bars etc.
Recently I have detect a nice shop near Camden Market/Town:
Second Layer(klick)
This one here could be interesting, but I don't trust in this shop having special items:
Sister Ray(klick)
The last one I discovered is
Resurrection Records(klick).
Only Second Layer could fit your question.
If anyone knows other places worth to visit etc. please let us know.
Thanks in advance.