Nov bother mate! Also, just while I'm here, a guy I work with, our warranty technician actually, he's got about six Univegas, including a couple of Alpinas, a 508 I believe? I'm not 100% I'll ask him tomorrow and give you some details if you want, might be what you're after!
The one my mate has is a 96 Alpina 508, frame and fork job, has the headset (thinks it an STX RC) and the BB, possibly the stem too, blue frame, lovely looking bike, 50 quid.