I bought a 1988 126 bis last November for £350. It is Agean blue and was last on the road in 1997. It had been stored in a concrete garage which is better than outside although it is very rusty especially underneath. As I am retired I have been working most days on it. A major problem was the engine was full of sludge , the cylinder head was cracked, and the pistons were seized in the cylinders. The new head , pistons, gaskets, valve springs ,and various other engine parts cost about £450. So far I have spent over £2000 including the purchase price and I have not finished yet. One thing I have found very useful is a home made rig to turn the car (bare shell) on its side or even upside down. It is just brackets front and rear and scaffold pole A frames each end. I also have a Fiat 127 1978 which is daily transport. One piece of advice. Do not leave petrol in a fuel tank for 20 years! It turns into something resembling thick varnish.