Him offering the bonus percentage was just a strategy - buttering you up so that you might agree to a lower alimony.
He should realize that alimony is tax deductable whereas giving you 25% of a questionable bonus is not.
Just go by his last 3 years taxes and pay stubs to calculate income (which includes bonus's) for the child support calculation. Scratch the bonus sharing.
Work with him on the negotiations as much as possible, because if he does get his own L things can get spendy.
30 days does seem like kind of a short time for him to get the asset buyout settled. My judgement specified that I had 90 days.
Poor me...I got a nice bonus which was calculated for my income the year we got divorced. However, the last 2 years I have not gotten a bonus. So, if I had gone with Dan's plan, I would be much better.