My car is a Toyota Yaris from 1999 and has done 119,000 miles. The car has a few minor issues/noises - the wheel bearing on the driver front wheel has gone and so when I turn right it squeals. There is a funny noise when I go fast - the mechanic thinks that it's a bearing in the transmission. But our biggest problem is that the timing belt has started rattling when i am standing still with the engine on.

The mechanic reckons that's a £500 job to fix, because the part is expensive and so we are re-evaulating what we do with the car. Which is the best to do?
* run the car till it blows and get a new car somehow
* sell as seen & be honest about problems
* try and replace the timing chain and everything else according to the Haynes manual and get some friends to help fix it - with a borrowed engine hoist?