if all 3 are used in a deal, IMHO, only Cousins and Griffin merit that much cost.
Butler and Love should require less to acquire.
Personally I'm souring a little on Cousins and Love. Cousins for maturity issues and does he fit Brad's type of play. Love because he's really expensive for what he's producing currently.
For Butler, terrific 2 guard that would be an upgrade on AB. I'd prefer to move AB as part of that deal to lessen the cost of the rest of the package.
For Griffin, would be a major upgrade on Sully and would try to use him as part of the trade package to try to lower the cost of the rest of the package (obviously need more than Sully in terms of talent going out)
Hate to give up a top 2 pick but would do it if it was for a top 10 player that's under contract for a while and figures to still be at the top of their game for several years to come.