@ Bill, missed this thread, sorry for the late response.
Look bro, you gotta relax, no more what if's, College game isnt my expertise, but I think I would just find a way to bump into her. I mean, why did you wait so long anyway. The good news is, if I understand correctly, she hasnt seen you for a while, so you can do a do-over. Infact, if shes really that hot, she might not even remember you, I have weird people walk up to me to talk who I met 6-8 months ago all the time, and I'm almost always like "who the hell are you?" in my head. So even though you have been thinking of her all this time, she might as well have just forgotten you.
I will say, good job on opening her up, weird mind set in "stalling" the obstacle, really not what you want to be thinking.
Just bump into her, look your best, and do some game, re-introduce yourself, if she remember you just be like "oh yea, I met some pretty cool people at that orientation" and let it slide, pretend you dont even remember her. IF she says "I already gave you my number before" just be like "OH! I'm sorry, did I forget to call you?"
Also, as you know, I never date a women who doesn't ask for my number first, because I have unlimited pussy at home, and I'm more interested in having Pets (yes, that is what I call them, boohoo. )than girlfriends, one girlfriend is enough. But for you, next time, when she gives you her business card say "hold on" and text her right there. Watch her get the message. I don't know, my wings ALWAYS do that, so there must be a reason for it.