This looks like a Fred Phipps kit. His brass work and resin fittings are fabulous. In fact everything that Fred produces is fantastic.
For the wheels, Slaters only list wagon wheels in Gauge 1 on their website:-
https://slatersplastikard.com/wheels/ga ... Wheels.php
Roxey Mouldings do some coach wheels in Gauge 1, but unfortunately do not list them on their website:-
http://www.roxeymouldings.co.uk/store_f ... EEL+WHEELS
They produce wheelsets in three different back to back dimensions, something like 40mm, 41mm and 42mm. I have seen these sets and they look quite nice, and I think they are about the same price as Slaters wheels.
For general photos you could start here:-
http://finance.groups.yahoo.com/group/BRCoachingStock/
But for more detail, try "British Railways Mark 1 Coaches" by Keith Parkin. It's an HMRS publication, ISBN 0 902835 22 X. Plenty of information and detail photos. There is also a supplement to this book by the same author and with the same title. The supplement lists coach formations, with coach identities and several formations are listed as being hauled by class 35, 42 and 52 - what more could you ask for!
Photos are very good, some good detail photos as well, but also some obscure coach diagrams are covered.
For painting, I sprayed my 1/32nd class 22 using Precision 150ml cans. I know that Steve Harrod has painted his class 22 / 42 by airbrush and he remarked that it was a laborious task - you have to make sure that you mix up enough paint, and get it on the model.
Roger Fry