Please, can you look at the Ramsgate to Victoria route? Add the connection at Faversham with the service from Dover. Base it in the '70s, BR blue, with 4-CEP/Class 411 units, maybe the odd EPB/HAP unit as well.
Danny has a WIP Faversham to Dover route in the Workshop but as yet it is only the track and signalling in place. Hopefully he will complete it some day. There are 2 and 4 EPBs in the Steam store with reskins for them and other goodies at DPSimulations. https://www.dpsimulation.org.uk/rf72emu.html Also 2HALS and 419s are available from Steam, all used on the Kent routes. Reskins for the 419 are available here. https://backdatedtrainsim.weebly.com/multiple-units.html
I have the HAL and EPB DLCs. Also the CIG and VEP. Faversham to Dover would be a good start, especially if Dover Marine or Western Docks is included. With the whole route, the Sheerness Branch can also be included, as well as the route from Chatham via Rochester and Strood on to Charing Cross, or from Chatham on to Cannon Street. Lots of potential.
Here's Dover Western docks and surrounding area. https://members.uktrainsim.com/file...untry=998&form_sim=14&form_path=ty=9,cls=3016 And again, Danny has a WIP Cannon St to Sevenoaks in the Workshop.
The Kent High Speed route already has the line from Ebbsfleet to Faversham without any extras required It is normally £24.99 but you could wait for a Sale Peter
This route would have to be in the modern day and the route would do great on the AP class 375 electrostar
Also why would it have to be in the Modern Day? It would be good to have a good Br Southern Region Route as we don’t have one yet, despite the amount of suitable rolling stock.