Inner Circle
I have just caught up with the conversation between you and Caracatus and I am in agreement. Augustus and Lucius did a good job obtaining information regarding the Potter woman so I think setting them the task of discovering what they can about Bones would suffice.
Severus is quite skilled and I believe he will work well with Regulus in taking down the wards though I would suggest that one of the Inner Circle stay with them in case they encounter something that is a little beyond them. Once they have dealt with the wards, whichever one of us is with them can dismiss them and signal then join the rest of us.
Regarding dealing with Bones, I believe he should be the last to die. He should see what his actions have wrought.