Sup guys.
One of my best friends has a B-day this saturday. He turns 18. At starters he didn't want to celebrate in any way and I went crazy over his decision.
At first I offered him to take him to the best night club in town and he agreed. I originally intended to use the night to sarge a little bit and throw any extra chicks his way if he could handle it. I'm just a mediocre PUA
So, after we were walking home after a day's workout at the gym, we started talking about his B-Day and he really wanted to invite more people, not just the two of us. He is one of my best buds, but he's a complete AFC. He'd invite only guy friends and our group will have very bad social proof, and destroy any game I might attempt.
I quickly offered to bring girls to his party. I knew that such a thing isn't easy (at least for me) and I didn't make any promises. But he's a real good friend of mine and I really want him to have a good time, so I really intend to get him some chicks.
So here's where I need advice. I have more past girfriends than female friends... and those girls aren't available right now. Do you guys have any ideas how to get chicks to his party with minimal chances of flakes?
I have a few ideas, I want your opinion.
1. I might try to talk to some chicks I kinda know at school, invite them over, pretending it's some sort of big-ass party. This lure might work. I saw this trick from Stealth Attraction

And when the girls show up I could be like "Well the rest couldn't really make it. It's just us! "
2. Or I might try to pull some chicks at the nightclub itself and bring them to our table, but I'm not that confident in my skills yet. I ain't Gambler of AFC Adam ...
3. Or simply invite the few (2) female friends I have that are a 5 and a 6.... This chick quality is unworthy of his party if you ask me... And on top, they even might not show up.
What should I do guys? Any ideas how to handle this?
Thanks in advance!