'ESWNL' (as he is known online) is working on a BVE4 compatible route file, but there are currently no suitable BVE4 trains available for this route so there is no need for it to be rushed at the present time. The 465 and 421 are suitable for the route in BVE2, aswell as the Electrostar that is used by default (despite it being a 377 rather than a 375). Something I've noticed is that the slammers are formed of only driving coaches...
....and it looks like even 'leafy' Kent isn't devoid of graffiti artists!
Just driven it in BVE4 to Maidstone and i thoroughly enjoyed it, some excellent work has gone into this and it feels pretty authentic. Will 'thrash the Cig along it soon. Also makes a nice break to have a quiet cab without binging and ringing every second! Not sure if the author posts on here but congratulations to him.
Looking forward to the BVE 4 version and some updated traction for it (hint, hint to the trainsimcentral boys)