Matt I generally use Gunze acrylics, thinned with Tamiya acrylic thinner, as these give me really good results, however for this build I'm using Lifecolor paints from Italy. Being Italian, they have a really good selection of RA colours, both external and internal.
As or airbrushing cockpits, i generally AB the base colour, in my case 'Italian Interior Green' then hand painted the rest, such as the panels and control stick, followed up by a coat of Future and a wash. Once all that is done, I simply give it all a coat of Gunze matt varnish.
Progress Update
The cockpit is now glued into the port fuselage half, as is the tail wheel. The head rest part was way too long and had to be cut down to clear the top of the seat. Don't think I did anything wrong, but you never know with me.
I've also added blanking plates behind the oil cooler intakes, and a section of plasticard behind the IP to cover the ugly fuselage joint.
Pictures to follow later.
Karl