Saab fogs are "Bosch Pilot 150" series. Bosch part number 25591. If you do a search on ebay you can usually find them pretty cheap. If you keep Saab, BMW, JDM, etc. out of the search criteria you'll find them cheapest. They came on lots of cars in the 80s and 90s. For some reason, putting a car brand name in the listing makes them more expensive.

The ambers that I had on my car cost me $35 shipped (The stone guards were extra). You can get the plugs for the wire harness off any Saab junker. They are just standard two-wire Saab plugs. Some of the plugs in the cluster of wires at the rear of the front fenders for example have the same plugs. If your car originally had fogs, the plugs may still be there in part or whole, depending on weather they were unplugged or cut.