I bet it's not. We north americans only got the plush models with most of the options. I think the europeans were able to get some of their options one by one.I thought all that stuff was already in place, installed on the car when it was built.
Given that you need to get your dealer involved for the Tech II part, I would suspect that an aftermarket alarm might be the cheaper option, even if you could get the SAAB parts used. You might check electronics sites in the us to see what's available for do it yourself aftermarket stuff. www.crutchfield.com and www.bestbuy.com might have something affordable. I don't know whether they'd ship to Estonia or not though.