For the project you're facing - you need to purchase at the least a Haynes Manual, if not a workshop manual set from Saab.
You can buy a Haynes Manual from Amazon.co.uk - http://www.amazon.co.uk/exec/obidos/ASIN/1...3254711-7116413
You can buy a Haynes Manual from Amazon.co.uk - http://www.amazon.co.uk/exec/obidos/ASIN/1...3254711-7116413