For the third one, go here: http://www.trainzclassics.co.uk/downloads/updates/updates.htm
and download: 'Presflo' wagons from that site. Not sure about the other two, but there is a list of stuff you need on the bottom of the routes page on the Sodor island 3D site.
Hello, would certainly like some help in finding kuid 93502:51028, have searched to no avail, if you can point me in the right direction I would be very grateful, kindest regards, and a very happy new year to you all,....