if the steering is stiff just grease the kingpins to see if it loosens up. if its 87 it should have a steering rack if its a polish car it could possibly have a steering box as some cars seem to have them although being produced later, if it does have a steering box you can either refurb it or buy one from poland for around £50-£60. It would be a shame to scrap what i can see is a pretty good example of this car.