Pay me £25M, I'll sit on a beach drinking G&Ts and then in five years give you a call to say "we failed".
Job done.
Me : For me to sit on a beach drinking G&Ts and then to give you a call saying "we failed"? No, I'll do that for £25M.
Of course, you can decide to spend many many billions to achieve the same outcome which I'm sure they will.
Me : Yep, it was $25M for a telco, in 2011 (?) on their planned private cloud effort in excess of $1Bn. They didn't accept, they blew the lot. One of the execs did phone me up later to tell me they wished they had paid me instead.