For the VC... i have found a page that has downloadable schematics.
(
Here,, click the link on the far bottom of the page)
May be everything you need for texture work and control detail..
Apart from generic stuff (including the text on the tyres) there are two schemes, one for the US route and the previous scheme that lists some of the records set before the US flight.
For the VC... the '4a' picture in the archive has both sides of the cabin... internal view. Apart from that it shows where the panels and the radio sytstems are placed. Panels are almost certain hammerite black. For instrument info... i'll have a look at it if you need it.
Cockpit layout (from front to back): Pilot in front. Navigator facing the side and his panel (or in the sextant position (open cockpit halfway), Copilot in the back, He flies on instruments only (and doesnt seem to have fuel indication on his panel)
For some extra info on the drawings, run the text that is somewhere between the pictures through babelfish
And for the flight model: they needed a jump ramp to get it airborne at full load...