Hi there Edward
If you do a search of this Forum, using the search bar, for this particular vessel 2564, you will see that it should be mentioned several times, along with several photographs. Some time ago, a gent was asking for some information on the same vessel.
I do have John Pritchard's plans for this vessel, also I have the originals from Vosper. If you use John Pritchard's plans; take note that the two wing turrets, either side of the bridge - do not cut into the bridge as shown in John Pritchard's plans, the edge of bridge actually cuts into the dome mountings. If you are going to use Astec's model of this as a basis to construct a near enough scale model out of it; you are going to give yourself a tremendous amount of work. As far as I can see, their model (Astec's model) is a very basic stand off and requires a lot of work around the bridge/also around the bow area - to bring it into an acceptable scale appearance.
You may wish to actually scratch build the whole model - there is a version around which has been built from Plasticard - and also the version I myself built using diagonal planking.
Whichever you choose - best of luck! I do have some more photographs somewhere - but, I am trying to find other photographs for someone else of the Leeds Castle, but not having much joy - I hope I havent parted with them.
aye
john e
bluebird