Thanks for all the support Gents, it's very heart warming.
Time for an update of some of the bits I've been pottering with.
I've sprayed the internal airframe and only silver penciled out the frame structure.
With this build haveing a lot of open air space, I decided to follow Andy's example and add the forward rib structure and camera mounting which on my cutaway sketch shows this to be boxed in front and rear.
I've also spent a lot of time fiddling with the flight deck, the kit provided a duel control platform so some modification was needed. This deck will be visaible through the open airframe wall, so reasonable detail is needed.
Under the deck also needs some form of detail and as you can see, I've made a start, but more is needed, particularly in wiring and piping.
Lastly the instrument panel, this is the first time I've used the newer 3D decals, so much easier than the detailed PE. I stuck it down with PVA glue.