It's impossible to say as everyone is different. You should listen to Omega's advice- it's solid- but you sound like you are going to do this no matter what, so again I urge you to research extensively.
That being said, I gained 18 pounds on a 300 MG EW Test cycle. I kept a great deal as I did proper PCT. You mentioned being shredded- well, at your size, you may want to add mass first. After you make and keep your gains with proper PCT you can start to lean out. Bodies are built in the kitchen- I learned that the hard way- keep your diet clean and tweak your program with the right amount of cardio to have lean gains. Remember- this is your cherry cycle- no need for anything but a low dose test cycle IMO. Best of luck.