go for a newer one with the six speed box as already said,
dont be put off by corroded wheels they are all like it unless they have been replaced or refurbed, but check the bottom edge of all doors inside and out for rust, (water gets trapped there) wheel bearings are a weak point too although not the end of the world,
for what they are they aren't bad on fuel have had 37mpg on a run but usually 31-32 on a motorway at 80,