Since he is confirmed to be in lucky board for this week and for one frag is 55 points, which means you need 55*80 = 4400 points. This means the maximum you need to for him would be 17,600 since each dice gives you 5. However, you will end up getting double points, landing on free dices giving by board and 14 free dice for the week, which means the amount of coupons/ingots needed will decrease.

I didn't say the average is 55 and i did say that you can land on double points and free dices on the board. The 55 was meant to show the points needed for one frag.