James, I thought you'd have it registered by now, last I heard wasn't the dead line Australia Day
I'd try a speedo cable first, I'll see if I have a spare one. You should be able to pull the old one out from behind the speedo.
Sometimes they get frayed which makes the week when turning, or they break usually a couple of inches from either end.
I haven't had much to do with fuel gauges but I think you have to take the tank out to change senders
I might have a spare you could try.
There could be a couple of things with the brakes, its usually fine adjustment thats required.
When you bleed them is the fluid coming our quickly or just dribbles out, any air bubbles?
Tune up would be good, you've put new plugs, points etc, hows the timing? The carby thing may be to lean
or a small leak in the inlet manifold, Have you got the choke hooked up?
I might be able to come up next weekend, probably Sunday, maybe Bronta can get there then as well