I would give anything/a lot idiom (also I would give my right arm)
愿意付出一切（以得到某物或做某事）
used to say that you would like to have or to do something very much
I'd give anything to see the Taj Mahal. 谁要是能让我去参观泰姬陵，他要什么我都愿意给。
Janice would give her right arm for a house like that. 要是能得到那样一套房子，贾尼丝什么都愿意做。