15 normal stamina for 25 points.

15 x 50 stamina = 750 / 10 = 75 sweep / 25 = 3 (1 point every 3 sweeps).

15 x 80 frags = 1200 normal stamina potion (60 000 total stamina to spend).

Good luck...

Supposed there is no limit to how many points you can get and that it's all random and no lower chances as you keep going, then with that much stamina you have ~760 normal stamina you can get 50-55 frags, you can then gather the rest later, all up to you.