Armed with nothing more than a few paperclips, scraps of card and Post-It notes two bunk beds have been fabricated for the other two bedrooms

and here they are in place

a couple of ladders might be an idea, wonder if OO Britannia tender ladders will fit .....

Keen eyes will also spot the livery change to choc and cream, if I have the transfers I'll brand it as a BR FK W13227