How much CB$ is... (in General)

..needed for a NCB if I intend to only buy BA during XP times?

Assume I don't need any CB$ for gear. (I'll have it all ready beforehand)

Well when I went through mine with FGoD @393% it was roghly 126 Mil for all bought BA. I would say that now it is almost Double that Bonus size this number should be close to correct for Just Big Exp times.

My math says 26m

That's based on 500k x 52

None, you'll make enough to pay for it. Unless you need that money for something else.

hmm looks like BA costs a little more than twice what I guessed...

So 2.2m a week if you buy at both times, doable if you don't spend money on anything else.

2.2 mil a week will get rough after the halfway mark when the challenge bonus drops, but you won't be going in broke anyway. Right now, I'm pulling in a bit under 1 mil/week.

Yeah it's not even, you make a little money in the beginning/middle, lose some in the end, it pretty much balances out.

I buy during xp times and right now at just under 1m mpr it costs me just under 900k to buy all my BA for that day. I usually make enough during the weak that I'm covering the costs of buying on both xp days. I'm not spending money elsewhere though.

Last week I actually made money only buying during exp times. That is at 1.7 mil mpr and a 80%ish CB. Although I did have a 2 person fightlist for awhile to maximize my bonus.

Take a 10 mil loan from Nat and use to for that purpose...should get you through most of it :)