Many thanks Lee.
For the bulk head seat back rest you have already kindly given me the sizes so I can now try and make one of those up (I guess the fascia it is about 4mm hardwood ply).
What we have is similar to your photo except my bulk head seat back has all been fixed (nailed & screwed) together. I want to get this back as was originally designed as it will make the bed longer. The other key thing on this bulk head seat is the opening hatch side panel has been replaced and screwed to the panel that swings out to make the "day bed" - if you are following me still. I need to sort this out and have bought the closest match hinges I can find http://www.ebay.co.uk/itm/10x-Antique-Brass-BUTTERFLY-CUPBOARD-HINGE-38-x-28MM-Cabinet-Furniture-FREE-POST-/200713979469?pt=UK_Home_Garden_Door_Accessories_LE&hash=item2ebb7c464d#ht_2693wt_1396
and get a more professional side panel fabricated.
The door mounted cooker was a home made affair and when it came to testing it, it was a Michael Jackson Pepsi moment! I subsequently bought one off eBay a few months ago that needs a bit of work, but is at least 90% original. Hopefully this one will be kinder to my eyebrows.
The rear drawers and wardrobes are there intact.
As for the table, I was planning to jump into your "Table" thread as the only original part of the table we have appears to be the front collapsible leg and hinge. There is no rear one so it is not portable and the table top looks wrong.
My back seat bottom with sink appears to be all there, but the back rest is totally missing and one other key thing I need to get made. My Pitt is a 1964, so think it should have had the fold down cupboards at the top and I guess will be the most complex to make up.
Does anyone know if there are plans with dimensions knocking around for the Pitt internals?