The old man is selling Blastoisinite for 70,000. Is this the guy you are talking about?
If you have max style it will be for 10,000. Since it is not at that price you still have some work to do. Try buying 50-100 Pokeballs of the boutique (with bargain 3 if you don't want to lose money if you sell them back later). --- 3DS FC: 2938-7055-6872 Friend list is getting full. Send a message with your Friend Safari Pokemon for me to add you.