Can someone point me in the right direction

[Sadsack]

I have been using Pikabirds excellent class 159 three car unit, in stagecoach livery both in 2004 and 2006. Is anyone able to tell me if and who can upgrade it to opening doors, passenger effect and interior detail.
I am willing to pay within reason for development.:wave:

 

[GreatEastern]

I am already developing (albeit rather slowly) a class 158/9 in the spare minutes in my life. It'll get a tad more attention once 10000 words of essay and 4 exams are out of the way.

Andy

 

[Sadsack]

I look forward to this with great anticipation. Good luck with your exams.