Avoid the Rock Auto Timing chain kits... They are of Too crap quality to use. Really!What's the question? Removing the oil sump (pan) took me about half a day to do the first time. You need to lift the passenger side of the engine to remove it - I used about a 1.5 inch thick steel bar under the engine mount to lift it.
Use row52.com to search for cars in local parts yards if you need to find a donor vehicle.
I've seen a few timing chain tensioner kits on RockAuto, but I have not done that job on a Saab yet.