With the track that you have started with, you might look at the idea of making transition tracks and going with the Fast track. I assume from what you've stated that your track is with roadbed attached. I have seen S Helper and Fast track soldered with roadbed of each cemented together. The problem of running both scale and highrail on the same trackage is mainly at the turnouts. I do not believe that you can run scale successfully on the Gargraves track, it leans to the high rail/toy train sector. There has been l believe a thread on the forum for modifying highrail turnouts to work with scale wheels.
Ray
