I have to run a separate line for the bathroom fan's light, and night light. I will also run a dedicated separate line for the heater part of the fan per the instructions from the manufacturer. . Having explained this, since I am running a separate line for the light and night light(duplex switch) part of the fan I also want to use this same line to feed the vent fan which will be on a wind up timer switch , a single pole switch for light over medicine cabinet and GFCI outlet. Now my question : should I run this separate line for the light, night light part of the bathroom fan to the attic add a junction box and from the junction box send a supply or feed to the duplex switch, light, night light , then send out another separate supply or feed from the junction box down to the fan timer and single pole switch to light over medicine cabinent and GFCI outlet. Or should I just run this separate line straight to the duplex switch for the light, night light then from the duplex switch feed the vent fan timer switch then single pole switch for light over medicine cabinet and GFCI ?