[He wouldn't put it like that really, but at least it has Lina warming up to him. Besides, what does Saber care what he tells Lina? She doesn't even want him thinking of her as a real person, so it's no problem...]
[Smirking at the cost thing. This, at least, is the Lina he knows.]
There's no money here, but maybe I can swing something. What do you want? [He is well aware he may live to regret asking like that, but beggars and choosers, etc. Having Lina forever annoyed at him was definitely worse than anything she could want. Probably.]