After many hours of rubbing and fettling and a lot of swearing it's now back up and running. Surprised how well it shoots the trigger is very impressive. The reassembly was difficult as it came in a box of bits, the only things that were missing was a trigger pin, which I made using the shank of a drill and the barrel shroud. The gun is not for the faint hearted and many thanks to the strip guide on here which made it possible. The stock is now solid. Just burning off the excess neat foot oil but it looks promising.
If any one can help with the shroud I would be most grateful, I've put a hens teeth request in the wanted section!