Greetings, Im new here and installing a complete bathroom in a different location. Im a handy DIY'er but am a bit confused as to proper routing for sewer/vent/stack with this layout. Obviously my intent is eventual inspection so I gotta get this right. Currently unemployed so i'd prefer to avoid the expense of a plumber to come in and design a passable system. My hope is to complete this project before winter...code area western NY. It would be invaluable to me if I could get a bit of advice on this...frankly Im afraid to just wing it...all new install will be dwv ending in a fernco to existing cast iron sewer. My apologies for lack of complete info..Id be happy to provide any info needed. As per these pics...existing sewer is not shown at bottom. Help greatly appreciated.