Thanks for the ideas every one, what I would say is buy some queen post from some one else as the ones with the kit need drilling out and after breaking 3 drills i ended up soldering the rods to the post and a right pin it was.
One thing I am stuck on is the regulator box which side dose it go on, the drawing dose not say is it the corridor or compartment side? Also dose the middle step support need removing for the fitting of the regulator box
or dose it site behind the center step support the drawing shows it in the center of the coach with out the post but says nothing of removing it. The book I have dose not help on this as most photos are in LNWR days the rest are LMS and there is is no photo of the 205 anyway.