I am creating Caltrain customs and I will release them. I'll reskin the GO Cab, GO Coach, SP PS Bi-Level commuter, and Make an MP36 model. I already made a Caltrain F40PH and will release it.
There is a V set in the works by Davido, He has done an amazing job on them from his screenshots. Patience and I am sure we shall see them available once he has them too the standard he wants them.
About 1/3 the way down the page, if you take a look back from that page he has a few more pics here and there of different liveries as well. They look exceptionally good models he is designing.