If you have puffy nipples, you should be able to kill it with letro/nolva the likes. Like if you can push in on it and you go back and hit the muscle, and it moves. Just kinda like a fat. As in you can mush around your peck, and there is no solidified lump in the way, then you should be able to get rid of it.
But solid...your SOL at this point, though there are some new things in the works i have seen, but currently knife is only way.
Also 6500 is ALOT for it. 5000 is my understanding of standard cost, and 2500 is the best deal. Honestly a plane ticket may be worth it to get the surgery.
On that note, Many people who have "gyno" have such a small bit of it that no one notices or cares. Many guys who take their shirts off today have a very mild case.
I sweat I have some small amount of puffy nips, but my friend says he doesnt see it.