Hi Dan,
I do have a wheel centre cap as wel as the handbrake for you if you want. The wheelcap has been painted, so you got some serieus cleaning to do. One or two caps?
What do you want from the brakelever, the one with switch or without? The cables you can get at a bicycleshop. The frontbrake I have as well. No rust, as new brakepads.
If you like it, i'm in Holland, Mind the post fee. I can sent up to two kilo to England for €9,00. Or £7,20.
Greetz
Frank