Thanks for the link Ian but Paul (Mach 1.5) has come to the rescue regarding opens.
My next dilemma is, what to do with the stock?
A, Leave as is.
B, Have a go myself and risk making a pigs ear out of it?
C, Send it to Nath for "The Works"?
I can see that it's been done in the past and it's ok with a couple of light marks which is to be expected. I'm not sure if the but pad is original as the fit to the stock isn't quite perfect.
I'm pretty sure I'm going to be putting more into this than the gun will be worth but it won't be the first gun that's happened to me and I still love the other.
http://imgur.com/a/pNmLlUI
http://imgur.com/a/zXUOaeu
http://imgur.com/a/5EYCWyG
http://imgur.com/a/pbwCpBV