I don't have all the answer to your questions but a set of H&R sport springs would bring you to around a stock Sport supension hight but the race would lower you more.
Stock shock are ok ish but you will find when you go through dips in the road the car willl bounce on the springs (boat effect) as the shock cant take up the slack where as sport shock or upgraded shock will and give a great ride for the money (this info is based on race springs).
Not a B6 but here's my old car on none sport shocks and H&R Race springs and then my current car on sport shocks and H&R race springs.
