I've got those exact same parts in my 535 and it is tight as in perfect. Patrick is my guy at BMA also and I trust him totally. Like he said, no point in paying the 20 for the bag. You're going to be fine. Why didn't you replace the lower control arms while you are there since everything else is coming out. TRW is not a cheap part company by the way.
Mike Holbrook
Meridian, Idaho
1992 535im, 17", Euro M5 Throwing Stars 8's & 9's, FK-451 235/45s & 255/40s, M5 Sway Bars 25/20, Conforti chip, Lowes Ram Air, glass sunroof