Well, I'm in Romford......
From the photos, it doesn't look bad at all. Just needs tweaking probably. The bearing is the spinny roundy bit that just hangs loose and the cable nipples go into.
The trick is to wind the cable adjuster on your lever all the way in (so the cable feels slack) and do the same on the adjuster on the top cable.
Then wind the two top adjusters on the gyro out to their highest point and lock them off.
Then wind the bottom two adjusters out to their lowest point and lock them off.
So now you have the biggest gap possible between the upper and lower bits of your gyro.
Then wind the single adjuster nearest the straddle cable all the way in, so its at its loosest.
Now sort out your straddle cable and the little silver hanger so the single cable runs straight through it nicely and hangs out the bottom.
Be sure to pull some cable through if you need to loose some slack.
Now adjust your brake just like the old days with the single adjuster on your downtube closest to the straddle.
Go back to your lever and use that adjuster ONLY to take any remaining slack out of it.
Any further adjustments should only be made down on the downtube nearest the straddle.
That should sort it out. Oil cables, deglaze pads and clean rims. Go ride!
It sounds like a bollockache, and it is..... but gyros work just fine once they've been teaked a few times. Can take a bit of patience
PM me if you can't be arsed to go through it and I'll pop round sometime.