No actually. It was quite OK. WP Pro sells a kit for the 9000, but that comes with either the 336 or 360mm discs. Those are WAY to big for the original 16" rims. I really wanted to keep the original look. So I e-mailed them and they also sell 312mm discs. These will fit. So if you buy the 9000 336mm kit, ask for 312mm discs. The brackets are included and are bolt-on if you have a MY88-94. Only downdides: Had to have custom braking lines made (the 9000 ones that are included in the kit won't fit) and you need 10mm spacers per wheel, because the axelhubs for the 9000 are wider. But as far as my research goes, these brakes are the only big brake kit that will fit under the original SAAB 9000 16" wheels.
Thanks for the info! A pretty straight forward process then. I am running the bigger 9000 calipers but these look like, at least, another step up. Like your car and the mods you´ve made to it. I recognize the hoses as well... ;)