There are plenty of O gauge electric outline locos powered by clockwork, and most are reasonably priced. So to modify these would, in my opinion, be a crime! I love that Bub electric steeple cab. So if you decide to part with it, I have tons of IVES clockworks to trade, or would purchase it. I have admired it since you posted pics on your vintage layout. I have sold the gray version, but never had the red and orange. It is gorgeous! Shoot me an email if you decide it needs a new home... willowriverantiques@yahoo.com.