There seems to be a lot of confusion going on as it seems there are multiple R142A & R143 projects going on but I don't think you should post that you are working on it until you have something to show for it! And when you do, create a new thread for it, post screenshots, videos, etc.! There's nothing wrong with having two versions of the same train but why waste your time saying you're working on this and that and then we never hear about that train again.
My next projects are the Siemens R179 and a new R142A with HD sounds, and combine the animated signs from the <6> with the new interior from the (7).