No chance, I have thousands of dollars tied up in Ross switches with Gargraves track. I can't imagine making enough difference in the appearance to start over from scratch. Remember, it's not just the track, which would be the easy part, it's making switches that match it! I sing with the chorus here, this is not a winner IMO.
I can't imagine this being a marketing success, I'd be looking for another place to make my mark if I were you.