Google UXE - Salary expectations

Question: how much money a 5 YOE Front-end Engineer should ask for a UXE role at Google SF? Knowing that I currently live in the Miami area and making ~140k (base salary without bonus) The cost of living in SF is so much higher it is really hard to get a sense of how much I should expect getting and how much I can realistically ask for? When using websites to calculate salary equivalents I get to 140k in Miami = 240k in SF. Also I am aware that google package includes Base Salary + Bonus + Stocks. Can you even negotiate ?