It is good to hear that at least some of your problems are gone.

For the chain and cables that rust: Ad some oil, make sure the oil is covering the chain but also wipe off the oil that does not "sink into" the chain. Oil on the surface is going to collect dust and make it dirty. The chain and cable are a bit cheap I would guess.

I think there are several solutions to your brake problem. This: http://www.ebay.co.uk/itm/Dual-Pull-...item3a7031ce75 is one of them.

You have been asked in the past if you are willing to tell us approxemately where you live. There is quite a lot of peopel on this forum that would be willing to help you if they kew how to find you.