So it for example wouldn't run properly with my main project, Dark Energy (or Future) but you can patch it freely over a simple "251-hack" which only changes the pokemon trainers use and wild pokemon data (+ maps). I don't know if there is such hack out for Silver though. Check out Zophar's Domain, I remember seeing something similar to that being uploaded there a year or two ago. As stated in the main post though, it should be okay to patch this over a Gold (U) rom (hack) too but there are no guarantees. If you run into problems, you can always "de-patch" it and continue from the point you left.