He needed the money for obvious reasons which I have already stated. Will that do?
Let's see what this means from the perspective of libel.
1. Eleanor is talking about a public figure - Goncalo Amaral.
2. Eleanor is saying he wrote the book because he needed money.
You could ask is this statement a true or false statement, but when you consider that it makes little to no difference to GA's reputation and therefore there is no chance of GA suing Eleanor for damages.
Should it then be judged as opinion stated as fact or not? That is a good question and I see the issue as to what sort of fact is being said.
Is it a personal fact or non-fact (true or false statement about a person)
Is it a non-personal fact (the fact can be backed by a cite.)
Is it an opinion about a non-personal fact. (must be stated in a way it is obvious to be opinion, "I think" "I believe" or IMO.)
Is this the start of a way of telling whether a statement is libel or not?