Provide us some information and pictures, as well the rolling stock you want. Just asking for a route wont help make it come true. You need something that makes DTG think about the route by providing the Rolling Stock you want, Pictures, etc.
class 377's and 387's stations: London victoria clapham junction east croydon coulsdon south purley merstham redhill earlswood salfords horley gatwick airport three bridges crawley ifield little haven and horsham