I have the BBS wheels and the Carl Nelson springs, neither of which are on the car yet. Outside of the trial and error method, are there any ways to predict which spacers, rings, etc. I will need in advance? I do not have a lift yet so this will be done at a garage. Based on the cost of the spacers and rings, probably better to have everything on hand before we start. I'm also not sure where my early US car has the front tower spacers to raise the headlamps, but based on the look (like it's about to take off) I'm guessing so. I do like the look of the slightly lowered 17's so hopefully we will make some progress in the next couple of weeks. I have also not purchased tires yet, but it sounds like a 215 or 225 on all fours is probably the safe bet.