Hello there, Heres a little poser. My interest is in South American metre gauge copper mining railways. The intention is to run diesel outline (General Electric) locos with a variety of tank cars, flat cars and hoppers. All of this equipment is available as HO ready to run, and I have bought several Frateschi locos (made in Brazil) which are of GE outline. (There bodies fit straight onto Proto GP7 chassis by the way). Question. In HO they will look and operate ok, but I am considering going to HOn3. Is there any way for a quick conversion of bogies, and would it all look top heavy as a result. In the flesh (or metal) they all seem pretty large (standard gauge size) with the metre gauge bogies, but they look pretty small alongside the 5'6" gauge locos which run on the main line. Thanks. I live in the UK by the way.