A Big Blast for the Big Bang

Let's say my account has
- level 150
- level 120
- level 70
- level 50
- level 40
- level 30 (should train this to 40 f3)
Does that mean I can do the lv.20 quest 6 times, the lv.40 quest 5 times, the lv.60 quest 3 times, the lv.80-120 quests 2 times, and the lv.140 quest once, for a total of 5 weapon boxes and 16 energy capsules?

Yes, you can.

However, you can only use one box (well, there may not be a restriction on boxes, but there's no point in more than one) and 7 Energy Capsules on each Resistance character.