Hope you have a big budget. Mrchams is using one I believe.
Perhaps before you ask people an incredibly vague question like "What should I do to my engine", you give us more information such as what sort of power you are looking for, what sort of applications you will be using the car etc.
If you plan to fit an RB26 I cant see the need for you to look at a stroker unless you are chasing some serious power ,greater than what the RB26 is capable of already, or you have serious amounts of cash to burn.