How much does an ANG pilot make per month? I know this question is wide open and there are many ways to make the extra buck in the guard, but roughly, what can one expect?

I will be entering the Guard as an O-4 flying KC-135s. I have no clue if I'll be flying once a month, 3 times, or more, nor how many days I'll be flying. For the purposes of this discussion please do not include tax free/AOR pay. I'm sure I'll likely be activated at some point throughout the year but what is the basic pay assuming all I did was fly locally? Simply put, if I'm a weekend warrior flying the tanker as an O4 over 10, what's the "average" per month, I can expect?

I expect to get a range, and that's ok. Just curious if the range is $250-750/month or $1000-2000/month. Who knows, maybe something a lot lower/higher or in between. I have no idea.