If you want my advice, dont buy one! :bang:
If you still want one, make sure its at the very top of your budget, anything less, will be nothing but trouble - as with any car!
But, theres not alot to look out for as such, but check for rust in the obvious places, bodywork should be fine, as it is galvanised.
If it has the digital dash, test all of the controls, as some of the bulbs kinda 'stick on' ie handbrake light and oil, sometimes the rear defroster. Dont worry if the rear wiper doesnt work, Its just the rod seized.
Also, get an injection version, the carbs on them are an absolute waste of time!
Good luck!