I'm looking at building my first semi-permenant layout (been futtzing around with Kato track for awhile) and I would really like to incorporate a hump yard. Does anyone know if this has been done before and if any references are around? I am also planning to put down some circular/oval loops so the yard wouldn't stand alone. Just a pipe-dream project right now, along with buying a DCC kit, converting to MT couplers, figuring out what era, if any, to model, and trying not to piss off my landlord (I live in an apartment, hence the semi-permanent bit). Any help is greatly appreciated!